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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP7W/38QPDRS
Repositorysid.inpe.br/mtc-m19/2010/12.20.16.34   (restricted access)
Last Update2018:04.10.19.24.16 (UTC) marciana
Metadata Repositorysid.inpe.br/mtc-m19/2010/12.20.16.34.59
Metadata Last Update2018:06.05.04.34.58 (UTC) administrator
Secondary KeyINPE--PRE/
DOI10.4028/www.scientific.net/MSF.660-661.347
ISSN1662-9752
Labelself-archiving-INPE-MCTIC-GOV-BR
Citation KeyChenSilvRowe:2010:SyPbIn
TitleSynthesis of PbTe Intermetalic Compound by Mechanical Alloying
Year2010
MonthOct.
Access Date2024, May 08
Secondary TypePRE PI
Number of Files1
Size217 KiB
2. Context
Author1 Chen, Y. A.
2 Silva, Cosme Roberto Moreira
3 Rowe, D. Michael
Group1 LAS-CTE-INPE-MCT-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
JournalMaterials Science Forum. Advanced Powder Technology VII Book Series
Volume660 - 661
Pages347-352
History (UTC)2011-05-25 03:40:13 :: marciana -> administrator :: 2010
2012-11-21 14:54:44 :: administrator -> marciana :: 2010
2013-02-01 16:30:46 :: marciana -> banon :: 2010
2013-02-07 13:31:03 :: banon -> administrator :: 2010
2016-06-04 23:14:17 :: administrator -> marciana :: 2010
2018-04-10 19:24:16 :: marciana -> administrator :: 2010
2018-06-05 04:34:58 :: administrator -> marciana :: 2010
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsMechanical Alloying (MA)
Thermoelectric
AbstractThe formation of PbTe intermetallic compound by mechanical alloying (MA) has been investigated. The elemental starting materials were 99.5% pure lead and tellurium, with a sieve size of 80 and 200 mesh, respectively. A SPEX 8000 shaker milling was used to perform the MA, using WC balls as milling media in a cylindrical hardened tool steel vial. X-ray diffraction analysis was performed with a profile-fitting program, to evaluate time evolution of the alloy formation. An exotermical reaction occurs on PbTe formation, with entalphy H= - 16.3 Kcal/mol. The *T value is confirmed by the heat exchange equation *Q = |*Hf | =* i (mici ) *T, where the summation comprises the mass and specific heat of vial, balls and powder material. For the standard milling conditions employed, the PbTe formation occurs at aproximately 90 seconds of milling, when using charge ratios between 3:1 and 7.5:1. However, for lower charge ratios (8:1 to 10:1), isolated reactions at the mixture occurs, but the amount of material is not enough to raise the temperature of adjacent regions, and the propagation of the reaction is avoided. There is therefore a minimum amount of powder (critical mass), and below this value the reaction will not be self-sustained.
AreaFISMAT
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAS > Synthesis of PbTe...
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4. Conditions of access and use
Languageen
Target Filechen_synthesis.pdf
User Groupadministrator
banon
marciana
Visibilityshown
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/3ESR3H2
Host Collectionsid.inpe.br/mtc-m19@80/2009/08.21.17.02
6. Notes
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