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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16c.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier6qtX3pFwXQZGivnK3Y/UztBS
Repositorysid.inpe.br/mtc-m18@80/2008/06.26.13.58   (restricted access)
Last Update2008:06.26.13.58.55 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m18@80/2008/06.26.13.58.56
Metadata Last Update2018:06.04.04.05.16 (UTC) administrator
Secondary KeyINPE--PRE/
DOI10.1016/j.jmatprotec.2007.05.062
ISSN0924-0136
Citation KeyKuranagaLeitFilg:2008:ToRECe
TitleToughened RE-TZP ceramics obtained by HPHT process
Year2008
MonthJan.
Access Date2024, Apr. 28
Secondary TypePRE PI
Number of Files1
Size727 KiB
2. Context
Author1 Kuranaga, Carlos
2 Leite, R.
3 Filgueira, M.
Group1 LAS-CTE-INPE-MCT-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Programa de Pós-Graduação em Eng. e Ciência dos Materiais (PPGECM), Centro de Ciência e Tecnologia (CCT), Universidade Estadual do Norte Fluminense (UENF)
3 Programa de Pós-Graduação em Eng. e Ciência dos Materiais (PPGECM), Centro de Ciência e Tecnologia (CCT), Universidade Estadual do Norte Fluminense (UENF)
JournalJournal of Materials Processing Technology
Volume196
Number1/3
Pages373-378
History (UTC)2008-06-26 13:58:56 :: simone -> administrator ::
2018-06-04 04:05:16 :: administrator -> marciana :: 2008
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
KeywordsZrO2
Rare earth oxides
Sintering
HPHT
High pressure
Tetragonal phase
AbstractYttria-stabilized tetragonal zirconia polycrystalline (Y-TZP) presents unique combinations of properties such as high fracture toughness, chemical stability and biocompatibility. These characteristics are responsible for great potential for application as structural components. This material is usually obtained by solid-state sintering, at temperatures around 15001600 °C. The objective of this work is the development and characterization of ZrO2-based ceramics, obtained by high-pressure, high-temperature (HPHT) sintering. As an alternative stabilizer of tetragonal ZrO2 phase, the use of a mixed yttriumrare earth oxide, designated as RE2O3, is proposed. ZrO26 wt.% RE2O3 powders were compacted and sintered at temperatures between 1100 and 1400 °C, using high pressures (4 or 5 GPa) and low sintering times (15 min). The sintered bodies were characterized by relative density, X-ray diffraction, and scanning electron microscopy. Hardness and fracture toughness were the mechanical properties evaluated. The best results were obtained in samples sintered at 1200 °C4 GPa for 1 min, which presented hardness of 545 kgf/mm2, fracture toughness 10.7 MPa m1/2, with relative density about 98% of the theoretical density and 97.3% of tetragonal phase.
AreaFISMAT
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAS > Toughened RE-TZP ceramics...
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4. Conditions of access and use
Languageen
Target Filetoughened.pdf
User Groupadministrator
simone
Visibilityshown
Archiving Policydenypublisher denyfinaldraft24
Read Permissiondeny from all and allow from 150.163
5. Allied materials
Next Higher Units8JMKD3MGPCW/3ESR3H2
DisseminationWEBSCI; PORTALCAPES.
Host Collectionsid.inpe.br/mtc-m18@80/2008/03.17.15.17
6. Notes
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7. Description control
e-Mail (login)marciana
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