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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP7W/3DBMTD8
Repositorysid.inpe.br/mtc-m19/2013/01.08.18.19   (restricted access)
Last Update2013:01.17.15.30.02 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m19/2013/01.08.18.19.27
Metadata Last Update2018:06.05.04.13.45 (UTC) administrator
Secondary KeyINPE--PRE/
DOI10.2528/PIER12072412
ISSN1070-4698
1559-8985
Citation KeyHasarBaSaOzKaDaAy:2012:ReEfEl
TitleRetrieval of Effective Electromagnetic Parameters of Isotropic Metamaterials Using Reference-Plane Invariant Expressions
Year2012
Access Date2023, Jan. 31
Secondary TypePRE PI
Number of Files1
Size2827 KiB
2. Context
Author1 Hasar, U. C.
2 Barroso, J. J.
3 Sabah, C.
4 Ozbek, I. Y.
5 Kaya, Y.
6 Dal, D.
7 Aydin, T.
Group1
2 LAP-CTE-INPE-MCTI-GOV-BR
Affiliation1
2 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1
2 barroso@plasma.inpe.br
e-Mail Addressmarcelo.pazos@inpe.br
JournalProgress in Electromagnetics Research
Volume132
Pages425-441
History (UTC)2013-01-17 15:30:02 :: marcelo.pazos@sid.inpe.br -> administrator :: 2012
2018-06-05 04:13:45 :: administrator -> marcelo.pazos@inpe.br :: 2012
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AbstractThree different techniques are applied for accurate constitutive parameters determination of isotropic split-ring resonator (SRR) and SRR with a cut wire (Composite) metamaterial (MM) slabs. The first two techniques use explicit analytical calibration-dependent and calibration-invariant expressions while the third technique is based on Lorentz and Drude dispersion models. We have tested these techniques from simulated scattering (S-) parameters of two classic SRR and Composite MM slabs with various level of losses and different calibration plane factors. From the comparison, we conclude that whereas the extracted complex permittivity of both slabs by the analytical techniques produces unphysical results at resonance regions, that by the dispersion model eliminates this shortcoming and retrieves physically accurate constitutive parameters over the whole analyzed frequency region. We argue that incorrect retrieval of complex permittivity by analytical methods comes from spatial dispersion effects due to the discreteness of conducting elements within MM slabs which largely vary simulated S-parameters in the resonance regions where the slabs are highly spatially dispersive.
AreaFISPLASMA
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DisseminationWEBSCI; PORTALCAPES; COMPENDEX.
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6. Notes
Empty Fieldsalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel format isbn keywords label language lineage mark month nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url
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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP7W/3DBMS2E
Repositorysid.inpe.br/mtc-m19/2013/01.08.18.02   (restricted access)
Last Update2013:01.21.13.49.49 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m19/2013/01.08.18.02.27
Metadata Last Update2018:06.05.04.13.44 (UTC) administrator
Secondary KeyINPE--PRE/
DOI10.1163/156939312798954982
ISSN0920-5071
Citation KeyHasarBarrErtu:2012:PeMeSp
TitlePermeability Measurement of Split-Ring-Resonator Metamaterials From Free-Space Transmission-Only Calibration-Independent Methods
Year2012
Access Date2023, Jan. 31
Secondary TypePRE PI
Number of Files1
Size308 KiB
2. Context
Author1 Hasar, U. C.
2 Barroso, J. J.
3 Ertugrul, M.
Group1
2 LAP-CTE-INPE-MCTI-GOV-BR
Affiliation1
2 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1
2 barroso@plasma.inpe.br
e-Mail Addressmarcelo.pazos@inpe.br
JournalJournal of Electromagnetic Waves and Applications
Volume26
Number1
Pages54-63
Secondary MarkA1_ENGENHARIAS_IV
History (UTC)2013-01-08 18:02:27 :: marcelo.pazos@sid.inpe.br -> administrator ::
2013-01-08 18:02:28 :: administrator -> marcelo.pazos@sid.inpe.br :: 2012
2013-01-21 13:49:49 :: marcelo.pazos@sid.inpe.br -> administrator :: 2012
2018-06-05 04:13:44 :: administrator -> marcelo.pazos@inpe.br :: 2012
3. Content and structure
Is the master or a copy?is the master
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Content TypeExternal Contribution
Keywordsscattering parameter measurements
permittivity determination
microwave method
electrical characterization
complex permittivity
propagation
AbstractA promising calibration-independent microwave method is proposed for complex permeability extraction of metamaterial structures composed of periodic split-ring resonators. For the retrieval process, uncalibrated (raw) complex scattering parameter measurements of three measurement configurations in free-space are utilized. The advantage of the proposed method is that it employs the transmission-only scattering parameters of metamaterial slabs in the permeability retrieval. This approach improves measurement stability and accuracy and eliminates measurement errors, if any, occurring in reflection S-parameters of the slab. It is validated by retrieving the magnetic properties of various homogeneous metamaterial slabs.
AreaFISPLASMA
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5. Allied materials
Mirror Repositoryiconet.com.br/banon/2006/11.26.21.31
Next Higher Units8JMKD3MGPCW/3ET2RFS
DisseminationWEBSCI; PORTALCAPES.
Host Collectionsid.inpe.br/mtc-m19@80/2009/08.21.17.02
6. Notes
Empty Fieldsalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel format isbn label language lineage mark month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder secondarydate session shorttitle sponsor subject targetfile tertiarymark tertiarytype typeofwork url versiontype
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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP7W/3DBLKLE
Repositorysid.inpe.br/mtc-m19/2013/01.08.11.17   (restricted access)
Last Update2013:02.18.14.01.18 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m19/2013/01.08.11.17.07
Metadata Last Update2018:06.05.04.13.42 (UTC) administrator
Secondary KeyINPE--PRE/
ISSN0169-4332
Citation KeyPillacaUedaKostReut:2012:StPlIm
TitleStudy of plasma immersion ion implantation into silicon using magnetic mirror geometry
Year2012
Access Date2023, Jan. 31
Secondary TypePRE PI
Number of Files1
Size500 KiB
2. Context
Author1 Pillaca, E. J. D. M.
2 Ueda, M.
3 Kostov, K. G.
4 Reuther, H.
Group1
2 LAP-CTE-INPE-MCTI-GOV-BR
Affiliation1
2 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1
2 ueda@plasma.inpe.br
e-Mail Addressmarcelo.pazos@inpe.br
JournalApplied Surface Science
Volume258
Number24
Pages9564-9569
Secondary MarkB2_ASTRONOMIA_/_FÍSICA B2_BIOTECNOLOGIA B2_CIÊNCIAS_BIOLÓGICAS_I B2_CIÊNCIAS_BIOLÓGICAS_II B1_ECOLOGIA_E_MEIO_AMBIENTE B1_ENGENHARIAS_II A2_ENGENHARIAS_III A1_ENGENHARIAS_IV B2_FARMÁCIA B1_GEOCIÊNCIAS A1_INTERDISCIPLINAR B2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA B1_MATERIAIS B1_MEDICINA_II B1_MEDICINA_III B1_ODONTOLOGIA B2_QUÍMICA A2_SAÚDE_COLETIVA
History (UTC)2013-02-18 14:03:28 :: marcelo.pazos@sid.inpe.br -> administrator :: 2012
2018-06-05 04:13:42 :: administrator -> marcelo.pazos@inpe.br :: 2012
3. Content and structure
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Keywordsplasma immersion ion implantation with magnetic field
silicon
magnetic mirror geometry
crossed E × B fields
AbstractThe effect of magnetic field enhanced plasma immersion ion implantation (PIII) in silicon substrate has been investigated at low and high pulsed bias voltages. The magnetic field in magnetic bottle configuration was generated by two magnetic coils installed outside the vacuum chamber. The presence of both, electric and magnetic field in PIII creates a system of crossed E×B fields, promoting plasma rotation around the target. The magnetized electrons drifting in crossed E×B fields provide electron-neutral collision. Consequently, the efficient background gas ionization augments the plasma density around the target where a magnetic confinement is achieved. As a result, the ion current density increases, promoting changes in the samples surface properties, especially in the surface roughness and wettability and also an increase of implantation dose and depth.
AreaFISPLASMA
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAP > Study of plasma...
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User Groupmarcelo.pazos@inpe.br
Reader Groupadministrator
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Visibilityshown
Archiving Policydenypublisher denyfinaldraft24
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Mirror Repositoryiconet.com.br/banon/2006/11.26.21.31
Next Higher Units8JMKD3MGPCW/3ET2RFS
DisseminationWEBSCI; PORTALCAPES; COMPENDEX.
Host Collectionsid.inpe.br/mtc-m19@80/2009/08.21.17.02
6. Notes
Empty Fieldsalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel doi format isbn label language lineage mark month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder secondarydate session shorttitle sponsor subject targetfile tertiarymark tertiarytype typeofwork url
7. Description control
e-Mail (login)marcelo.pazos@inpe.br
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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP7W/3D76RJL
Repositorysid.inpe.br/mtc-m19/2012/12.11.17.27   (restricted access)
Last Update2013:01.21.11.42.46 (UTC) marciana
Metadata Repositorysid.inpe.br/mtc-m19/2012/12.11.17.27.49
Metadata Last Update2018:06.05.04.13.27 (UTC) administrator
Secondary KeyINPE--PRE/
DOI10.1109/TPS.2012.2183895
ISSN0093-3813
Citation KeyKuekLiewSchaRoss:2012:CiMoNo
TitleCircuit Modeling of Nonlinear Lumped Element Transmission Lines Including Hybrid Lines
Year2012
MonthOct.
Access Date2023, Jan. 31
Secondary TypePRE PI
Number of Files1
Size2262 KiB
2. Context
Author1 Kuek, Ngee Siang
2 Liew, Ah Choy
3 Schamiloglu, Edl
4 Rossi, Jose Osvaldo
Resume Identifier1
2
3
4 8JMKD3MGP5W/3C9JHJ5
Group1
2
3
4 LAP-CTE-INPE-MCTI-GOV-BR
Affiliation1 Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore.
2 Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore.
3 Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87131 USA.
4 Instituto Nacional de Pesquisas Espaciais (INPE)
JournalIEEE Transactions on Plasma Science
Volume40
Number10
Pages2523 2534
Secondary MarkB3_ASTRONOMIA_/_FÍSICA B1_ENGENHARIAS_II B1_ENGENHARIAS_III A2_INTERDISCIPLINAR
History (UTC)2012-12-11 17:30:07 :: marciana -> administrator :: 2012
2013-01-21 11:36:23 :: administrator -> marciana :: 2012
2013-01-30 18:13:18 :: marciana -> administrator :: 2012
2018-06-05 04:13:27 :: administrator -> marciana :: 2012
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsElectric lines
Optical pumping
Transmission line theory
AbstractA nonlinear lumped element transmission line (NLETL) that consists of an LC-ladder network can be used to convert a rectangular input pump pulse into a series of RF oscillations at the output. The discreteness of the LC sections in the network contributes to the line dispersion while the nonlinearity of the LC elements produces the nonlinear characteristics of the line. Both of these properties combine to produce wave trains of high frequency. This paper describes an NLETL circuit model that is used to simulate RF generation for a given input pump pulse and the experiments used to validate the simulated results. The circuit model is used to study a nonlinear capacitive line that comprises nonlinear C but linear L and a nonlinear inductive line that comprises nonlinear L but linear C. Extensive and comprehensive parametric studies were carried out for the various NLETLs to understand the behavior and characteristics of these lines. Interesting observations were made, and explanations were given for their occurrence. A hybrid line that comprises both nonlinear elements L and C was also investigated using the circuit model with the goal of better matching to a resistive load. Simulations of the hybrid line indicate promising results.
AreaFISPLASMA
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Languageen
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marciana
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marciana
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Update Permissionnot transferred
5. Allied materials
Mirror Repositorysid.inpe.br/mtc-m19@80/2009/08.21.17.02.53
Next Higher Units8JMKD3MGPCW/3ET2RFS
DisseminationWEBSCI; PORTALCAPES; COMPENDEX; IEEEXplore.
Host Collectionsid.inpe.br/mtc-m19@80/2009/08.21.17.02
6. Notes
Empty Fieldsalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress electronicmailaddress format isbn label lineage mark nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder secondarydate session shorttitle sponsor subject targetfile tertiarymark tertiarytype typeofwork url
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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP7W/3D66HHL
Repositorysid.inpe.br/mtc-m19/2012/12.05.12.12   (restricted access)
Last Update2013:01.21.13.55.14 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m19/2012/12.05.12.12.37
Metadata Last Update2018:06.05.04.13.16 (UTC) administrator
Secondary KeyINPE--PRE/
DOI10.1109/TPS.2012.2199138
ISSN0093-3813
Citation KeyMendesRedoCanaRoss:2012:MoSoBi
TitleModeling of a solid-state bipolar blumlein generator for n stages
Year2012
Access Date2023, Jan. 31
Secondary TypePRE PI
Number of Files1
Size379 KiB
2. Context
Author1 Mendes, J. P. M.
2 Redondo, L. M.
3 Canacsinh, H.
4 Rossi, J. O.
Group1
2
3
4 LAP-CTE-INPE-MCTI-GOV-BR
Affiliation1 Instituto Superior de Engenharia de Lisboa, 1959-007 Lisbon, Portugal
2 Instituto Superior de Engenharia de Lisboa, 1959-007 Lisbon, Portugal
3 Instituto Superior de Engenharia de Lisboa, 1959-007 Lisbon, Portugal
4 Instituto Nacional de Pesquisas Espaciais (INPE)
JournalIEEE Transactions on Plasma Science
Volume40
Number10 Part 1
Pages2611-2617
History (UTC)2013-01-21 13:55:14 :: marciana -> administrator :: 2012
2018-06-05 04:13:16 :: administrator -> marciana :: 2012
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsBipolar pulse
Blumlein
Blumlein line
Impedance discontinuities
Load condition
Marx generators
Paper models
Pulsed-power
Reflection and transmission coefficients
Time domain
Voltage amplitude Engineering controlled terms: Mathematical models
Time domain analysis
Blumlein line
Pulsed power
Solid-state Marx generator
Submicrosecond bipolar pulses
AbstractThis paper models an n-stage stacked Blumlein generator for bipolar pulses for various load conditions. Calculation of the voltage amplitudes in time domain at the load and between stages is described for an n-stage generator. For this, the reflection and transmission coefficients are mathematically modeled where impedance discontinuity occurs (i.e., at the junctions between two transmission lines). The mathematical model developed is assessed by comparing simulation results to experimental data from a two-stage Blumlein solid-state prototype.
AreaFISPLASMA
ArrangementModeling of a...
doc Directory Contentaccess
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Languageen
User Groupadministrator
marciana
Reader Groupadministrator
marciana
Visibilityshown
Archiving Policydenypublisher allowfinaldraft
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Mirror Repositorysid.inpe.br/mtc-m19@80/2009/08.21.17.02.53
Next Higher Units8JMKD3MGPCW/3ET2RFS
DisseminationWEBSCI; PORTALCAPES; COMPENDEX; IEEEXplore.
Host Collectionsid.inpe.br/mtc-m19@80/2009/08.21.17.02
6. Notes
Empty Fieldsalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress electronicmailaddress format isbn label lineage mark month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder secondarydate secondarymark session shorttitle sponsor subject targetfile tertiarymark tertiarytype typeofwork url
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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP7W/3D5QM42
Repositorysid.inpe.br/mtc-m19/2012/12.03.11.42   (restricted access)
Last Update2013:02.18.17.13.07 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m19/2012/12.03.11.42.39
Metadata Last Update2018:06.05.04.13.15 (UTC) administrator
Secondary KeyINPE--PRE/
ISSN0257-8972
Citation KeyUedaOlRoMeRaVi:2012:ImPlIm
TitleImprovements of plasma immersion ion implantation (PIII) and deposition (PIII&D) processing for materials surface modification
Year2012
Access Date2023, Jan. 31
Secondary TypePRE PI
Number of Files1
Size1619 KiB
2. Context
Author1 Ueda, M.
2 Oliveira, R. M.
3 Rossi, J. O.
4 Mello, C. B.
5 Rangel, R. C. C
6 Vieira, M. S.
Group1 LAP-CTE-INPE-MCTI-GOV-BR
2 LAP-CTE-INPE-MCTI-GOV-BR
3 LAP-CTE-INPE-MCTI-GOV-BR
4 LAP-CTE-INPE-MCTI-GOV-BR
5
6 LAP-CTE-INPE-MCTI-GOV-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
4 Instituto Nacional de Pesquisas Espaciais (INPE)
5 Laboratório de Tecnologia de Plasmas, UNESP-Sorocaba, SP, Brazil
6 Instituto Nacional de Pesquisas Espaciais (INPE)
JournalSurface and Coatings Technology
Volumex
Secondary MarkB2_ASTRONOMIA_/_FÍSICA A1_ENGENHARIAS_II A2_ENGENHARIAS_III B1_ENGENHARIAS_IV A2_GEOCIÊNCIAS A1_INTERDISCIPLINAR A1_MATERIAIS B1_MEDICINA_II B2_QUÍMICA
History (UTC)2012-12-03 11:42:39 :: marciana -> administrator ::
2012-12-03 11:42:40 :: administrator -> marciana :: 2012
2012-12-03 11:47:07 :: marciana -> administrator :: 2012
2013-02-18 17:07:18 :: administrator -> marciana :: 2012
2013-02-18 17:13:07 :: marciana -> administrator :: 2012
2018-06-05 04:13:15 :: administrator -> marciana :: 2012
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsCr film on SAE 1070 steel by glow discharge
enhanced magnetron sputtering
high temperature PIII
plasma immersion ion implantation and deposition
surface modification by PIII&D
ZnO
Ca
hydroxyapatite films
AbstractPlasma immersion ion implantation (PIII) process is a three dimensional surface modification method that is quite mature and well known to the surface engineering community nowadays, especially to those working in the field of plasma-materials interaction, aiming at both industrial and academic applications. More recently, deposition methods have been added to PIII, the PIII&D, opening possibilities of broader range of applications of these techniques. So, PIII&D is becoming a routine method of surface modification, with the advantage of pushing up the retained dose levels limited by the sputtering due to ion implantation. Therefore, well adherent, thick, three-dimensional films without stress are possible to be achieved, at relatively low cost, using PIII&D. In this paper, we will discuss about a few PIII and PIII&D experiments that have been performed recently to achieve surface improvements in different materials: 1 - high temperature nitrogen PIII in Ti6Al4V alloy in which a deep nitrogen rich treated layer resulted in surface improvements as increase of hardness, corrosion resistance and resistance to wear of the Ti alloy; 2 - nanostructures in ZnO films, obtained by PIII&D of vaporized & ionized Zn source; 3 - combined implantation and deposition of calcium for biomaterial activity of Ti alloy (PIII&D), allowing the growth of hydroxyapatite in a body solution; 4 - magnetron sputtering deposition of Cr that was enhanced by the glow discharge Ar plasma to allow implantation and deposition of Cr on SAE 1070 steel (PIII&D) resulting in surfaces with high resistance to corrosion; and 5 - implantation of nitrogen by ordinary PIII into this Cr film, which improved resistance to corrosion, while keeping the tribological properties as good as for the SAE 1070 steel surface.
AreaFISPLASMA
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAP > Improvements of plasma...
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Languageen
User Groupmarciana
Reader Groupadministrator
marciana
Visibilityshown
Archiving Policydenypublisher denyfinaldraft24
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Mirror Repositorysid.inpe.br/mtc-m19@80/2009/08.21.17.02.53
Next Higher Units8JMKD3MGPCW/3ET2RFS
DisseminationWEBSCI; PORTALCAPES.
Host Collectionsid.inpe.br/mtc-m19@80/2009/08.21.17.02
6. Notes
Empty Fieldsalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel doi e-mailaddress electronicmailaddress format isbn label lineage mark month nextedition notes number orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder secondarydate session shorttitle sponsor subject targetfile tertiarymark tertiarytype typeofwork url
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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP7W/3D5QHJL
Repositorysid.inpe.br/mtc-m19/2012/12.03.11.00   (restricted access)
Last Update2017:07.21.15.22.45 (UTC) marciana
Metadata Repositorysid.inpe.br/mtc-m19/2012/12.03.11.00.34
Metadata Last Update2018:06.05.04.13.15 (UTC) administrator
Secondary KeyINPE--PRE/
DOI10.4028/www.scientific.net/MSF.727-728.50
ISSN0255-5476
Citation KeyCastagnetYoSiUeCoReNe:2012:MiAnTI
TitleMicrostructural analysis of TI-6L-4V alloy after plasma immersion ion implantation (PIII)
Year2012
MonthSep.
Access Date2023, Jan. 31
Secondary TypePRE PI
Number of Files1
Size1652 KiB
2. Context
Author1 Castagnet, M.
2 Yogi, L. M.
3 Silva, M. M.
4 Ueda, M.
5 Couto, A. A.
6 Reis, D. A. P.
7 Neto Moura, C.
Group1
2
3
4 LAP-CTE-INPE-MCTI-GOV-BR
Affiliation1 IPEN CNEN SP, Sao Paulo, Brazil
2 Instituto Tecnológico de Aeronáutica, ITA/DCTA, São José dos Campos, Brazil
3 Instituto Tecnológico de Aeronáutica, ITA/DCTA, São José dos Campos, Brazil
4 Instituto Nacional de Pesquisas Espaciais (INPE)
5 IPEN CNEN SP, Sao Paulo, Brazil
6
7 Instituto Tecnológico de Aeronáutica, ITA/DCTA, São José dos Campos, Brazil
JournalMaterials Science Forum. Advanced Powder Technology VIII Book Series
Volume727-728
NumberPTS 1 AND 2
Pages50-55
Secondary MarkC_ASTRONOMIA_/_FÍSICA B5_ECOLOGIA_E_MEIO_AMBIENTE B1_ENGENHARIAS_I B2_ENGENHARIAS_II B5_ENGENHARIAS_III B1_INTERDISCIPLINAR B2_MATERIAIS B5_MEDICINA_I B3_MEDICINA_II B1_ODONTOLOGIA C_QUÍMICA
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3. Content and structure
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KeywordsCreep resistance
Plasma immersion ion implantation
Ti-Al-4V alloy
AbstractThe search for alloys with improved high-temperature specific strength and creep-resistance properties for aerospace applications has led in the last decades to sustained research activities to develop new alloys and/or improve existing ones. Titanium and its alloys are excellent for applications in structural components submitted to high temperatures owing to their high strength to weight ratio, good corrosion resistance and metallurgical stability. Its high creep resistance is of great importance in enhancing engine performance. However, the affinity by oxygen is one of main factors that limit its application as structural material at high temperatures. Materials with adequate behavior at high temperatures and aggressive environmental became a scientific requirement, technological and economically nowadays. The objective of this work is the mechanical and microstructural characterization of the Ti-6Al-4V alloy after treatment by nitrogen Plasma Immersion Ion Implantation (PIII) process. The aim of this process is the improvement of superficial mechanical properties of the Ti-6Al-4V alloy. The selected alloy after ionic implantation process by plasma immersion was submitted to creep tests at 600°C, in constant load mode at 250 and 319 MPa. The techniques used in this work were optical microscopy and scanning electronic microscopy. The fractograph analysis of the samples tested in creep shows narrowing phenomena and microcavities. The creep results show the significant increase of material resistance, it can be used as protection of oxidation in high temperatures applications.
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6. Notes
Notes8th International Latin-American Conference on Powder Technology 2012
Santa Catarina
6 November 2012through9 November 2012
Code92999
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Reference TypeJournal Article
Sitemtc-m16d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP7W/3CHD7ES
Repositorysid.inpe.br/mtc-m19/2012/08.30.14.28   (restricted access)
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Secondary KeyINPE--PRE/
DOI10.1088/1742-6596/356/1/012034
ISSN1742-6588
Citation KeySilvaConOisTotUed:2012:StReVi
TitleStudy of reticulated vitreous carbon surface treated by plasma immersion ion implantation for electrodes production
Year2012
Access Date2023, Jan. 31
Secondary TypePRE PI
Number of Files1
Size536 KiB
2. Context
Author1 Silva, L. L. G.
2 Conceição, D. A. S.
3 Oishi, S. S.
4 Toth, A.
5 Ueda, Mario
Resume Identifier1
2
3
4
5 8JMKD3MGP5W/3C9JHSB
Group1
2
3
4
5 LAP-CTE-INPE-MCTI-GOV-BR
Affiliation1 Technological Faculty of Pindamonhangaba, FATEC, Vereador Abel Fabricio Dias Road, 4010, Pindamonhangaba SP, 12455-010, Brazil
2 Engineering Faculty-FEG, State University of São Paulo - UNESP, 333 Dr. Ariberto Pereira da Cunha Av., Guaratinguetá/SP, 12516-410, Brazil
3 Engineering Faculty-FEG, State University of São Paulo - UNESP, 333 Dr. Ariberto Pereira da Cunha Av., Guaratinguetá/SP, 12516-410, Brazil
4 Institute of Material and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, Budapest, Hungary
5 Instituto Nacional de Pesquisas Espaciais (INPE)
JournalJournal of Physics: Conference Series
Volume356
Number1
PagesArticle number: 012034
Secondary MarkC_ASTRONOMIA_/_FÍSICA B4_BIOTECNOLOGIA B2_ENGENHARIAS_III C_GEOCIÊNCIAS B1_INTERDISCIPLINAR B5_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA C_QUÍMICA
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2012-09-27 18:25:54 :: banon -> administrator :: 2012
2012-11-18 14:43:35 :: administrator -> marciana :: 2012
2012-11-28 15:40:40 :: marciana -> administrator :: 2012
2018-06-05 04:12:55 :: administrator -> marciana :: 2012
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KeywordsElectric potential
Glassy carbon
Ion implantation
Photoelectrons
Plasma applications
Scanning electron microscopy
Surface roughness
Vacuum
X ray photoelectron spectroscopy
AbstractRVC samples were treated by nitrogen plasma immersion ion implantation (N-PIII) for electrodes production. High-voltage pulses with amplitudes of -3.0 kV or -10.0 kV were applied to the RVC samples while the treatment time was 10, 20 and 30 min. The samples were characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and electrochemical measurements. The SEM images present an apparent enhancement of the surface roughness after the treatment probably due to the surface sputtering during the PIII process. This observation is in agreement with the specific electrochemical surface area (SESA) of RVC electrodes. An increase was observed of the SESA values for the PIII-treated samples compared to the untreated specimen. Some oxygen and nitrogen containing groups were introduced on the RVC surface after the PIII treatment. Both plasma-induced process: the surface roughening and the introduction of the polar species on the RVC surface are beneficial for the RVC electrodes application.
AreaFISPLASMA
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Target File1742-6596_356_1_012034.pdf
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6. Notes
Notes17th International Summer School on Vacuum, Electron, and Ion Technologies, VEIT 2011
Conference: 17th International Summer School on Vacuum, Electron, and Ion Technologies, VEIT 2011, September 19, 2011 - September 23, 2011
Sponsor: Eindhoven University of Technology, Department of Applied Physics
Publisher: Institute of Physics Publishing.
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Reference TypeJournal Article
Sitemtc-m16d.sid.inpe.br
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Secondary KeyINPE--PRE/
DOI10.1088/1742-6596/370/1/012045
ISSN1742-6588
Citation KeySeveroBAGTBJEFMNKSUT:2012:ErAnEl
TitleError analysis in the electron temperature measurements in TCABR
Year2012
Access Date2023, Jan. 31
Secondary TypePRE PI
Number of Files1
Size1039 KiB
2. Context
Author 1 Severo, J. H. F.
 2 Borges, F. O.
 3 Alonso, M. P.
 4 Galvão, R. M. O.
 5 Theodoro, V. C.
 6 Berni, L. A.
 7 Jeronimo, L. C.
 8 Elizondo, J. I.
 9 Figueiredo, A. C. A.
10 Machida, M.
11 Nascimento, I. C.
12 Kuznetsov, Yu.
13 Sanada, E. K.
14 Usuriaga, O. C.
15 Tendler, M.
Group 1
 2
 3
 4 LAP-CTE-INPE-MCTI-GOV-BR
Affiliation 1 Institute of Physics, University of São Paulo, Rua do Matão, s/n, 05508-900 SP, Brazil
 2 Laboratório de Plasma e Espectroscopia Atômica, Instituto de Física, Universidade Federal Fluminense (UFF), 24210-340, Niterói, RJ, Brazil
 3 Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Associação Euratom/IST, 1049-001, Lisboa, Portugal
 4 Instituto Nacional de Pesquisas Espaciais (INPE)
 5 Institute of Physics, University of São Paulo, Rua do Matão, s/n, 05508-900 SP, Brazil
 6
 7 Institute of Physics, University of São Paulo, Rua do Matão, s/n, 05508-900 SP, Brazil
 8 Institute of Physics, University of São Paulo, Rua do Matão, s/n, 05508-900 SP, Brazil
 9
10 Universidade Estadual de Campinas, 13083-970 Campinas, SP, Brazil
11 Institute of Physics, University of São Paulo, Rua do Matão, s/n, 05508-900 SP, Brazil
12 Institute of Physics, University of São Paulo, Rua do Matão, s/n, 05508-900 SP, Brazil
13 Institute of Physics, University of São Paulo, Rua do Matão, s/n, 05508-900 SP, Brazil
14 Institute of Physics, University of São Paulo, Rua do Matão, s/n, 05508-900 SP, Brazil
15 Royal Inst. Technol., Alfven Lab., Stockholm, Sweden
JournalJournal of Physics: Conference Series
Volume370
Number1
PagesArticle number: 012045
Secondary MarkC_ASTRONOMIA_/_FÍSICA B4_BIOTECNOLOGIA B2_ENGENHARIAS_III C_GEOCIÊNCIAS B1_INTERDISCIPLINAR B5_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA C_QUÍMICA
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2012-11-28 15:34:25 :: marciana -> administrator :: 2012
2018-06-05 04:12:55 :: administrator -> marciana :: 2012
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KeywordsElectron scattering - Error analysis
AbstractAn analytical method is proposed to evaluate the experimental uncertainty in the electron temperature measurements in the TCABR tokamak. Solving the integral equation resulting from the convolution of two functions, one representing, the scattered light and the other the spectral apparatus function, i.e., the polychromator, an analytical expression for the electron temperature is obtained, from which the uncertainty in the measured value is readily evaluated. The results show that the major contribution to the error comes from the noise in the signal; the uncertainties in the filters parameters do not contribute significantly to the total error.
AreaFISPLASMA
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6. Notes
Notes14th Latin American Workshop on Plasma Physics, LAWPP 2011
ISSN: 17426588, E-ISSN: 17426596
Conference: 14th Latin American Workshop on Plasma Physics, LAWPP 2011, November 20, 2011 - November 25, 2011
Sponsor: Instituto de Fisica del Plasma (INFIP)
Cons. Nac. Invest. Cient. Tec. (CONICET)
Comision Nacional de Energia Atomica (CNEA)
Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT)
Centro Latino-Americano de Fisica (CLAF)
Publisher: Institute of Physics Publishing
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Reference TypeJournal Article
Sitemtc-m16d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP7W/3CEKPB8
Repositorysid.inpe.br/mtc-m19/2012/08.13.15.37   (restricted access)
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Secondary KeyINPE--PRE/
ISSN1070-4698
1559-8985
Citation KeyHasarBarrSabaKaya:2012:RePhAm
TitleResolving phase ambiguity in the inverse problem of reflection-only measurement methods
Year2012
Access Date2023, Jan. 31
Secondary TypePRE PI
Number of Files1
Size420 KiB
2. Context
Author1 Hasar, U. C.
2 Barroso, J. J.
3 Sabah, C.
4 Kaya, Y.
Group1
2 LAP-CTE-INPE-MCTI-GOV-BR
Affiliation1 Department of Electrical and Electronics Engineering, Ataturk University, Erzurum 25240, Turkey
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Physikalisches Institut, J. W. Goethe UniversitÄat, Frankfurt, Germany
4 Department of Electrical and Electronics Engineering, Ataturk University, Erzurum 25240, Turkey
JournalProgress in Electromagnetics Research
Volume29
Pages405-420
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AbstractWe have applied the phase unwrapping technique to resolve the phase ambiguity problem arising from complex expressions of scattering parameters, for re°ection-only measurement con¯gurations, since, at some instances, only one side of the sample under test is accessible for electromagnetic measurements. We considered two di®erent measurement con¯gurations for testing the applicability of the phase unwrapping technique as: 1) two identical samples with di®erent lengths °ushed by a short-circuit termination and 2) one sample shorted by a varying short-circuit termination. For each measurement con¯guration, the underlying expressions for the re°ection scattering parameters are derived. For both cases, we evaluated the suitability of the phase unwrapping technique by considering a highly-dispersive medium (distilled water) as our test sample. We note that continuity of the real part of the complex wavelength is a key issue in the unwrapping technique for (one-port) re°ection-only measurements.
AreaFISMAT
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