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Reference TypeJournal Article
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP8W/34DN7R2   (restricted access)
Last Update2020: marciana
Metadata Last Update2021: administrator
Secondary KeyINPE--PRE/
Citation KeyHirschmannNonoRiehSilv:2008:PrMiCh
TitleProcessing and Microstructural Characterization of Porous Alumina-Zirconia Ceramic Using Cmc And PVC
Access Date2021, Feb. 27
Number of Files1
Size849 KiB
Context area
Author1 Hirschmann, Ana C. O.
2 Nono, Maria do Carmo Andrade
3 Riehl, R. R.
4 Silva, C. R. M.
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
JournalMaterials Science Forum. Advanced Powder Technology VI Book Series
History2008-12-18 11:48:15 :: simone -> administrator ::
2012-11-23 12:03:27 :: administrator -> simone ::
2013-01-31 13:04:46 :: simone -> administrator :: 2008
2013-01-31 13:16:48 :: administrator -> simone :: 2008
2013-01-31 13:17:00 :: simone -> banon :: 2008
2013-02-07 13:26:06 :: banon -> administrator :: 2008
2018-06-04 04:06:07 :: administrator -> marciana :: 2008
2020-09-15 12:20:29 :: marciana -> administrator :: 2008
2021-02-11 18:10:25 :: administrator -> marciana :: 2008
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Is the master or a copy?is the master
Content Stagecompleted
Content TypeExternal Contribution
Version Typepublisher
Keywordsalumina and zirconia, porous ceramics.
AbstractPorous materials are of significant interest due to their wide application in catalysis, separation, lightweight structural materials, biomaterials and other areas. Porous ceramics are produced within a wide range of porosities and pore sizes depending on the application intended. Porosity and pore size distribution can be carefully controlled by the choice of organic composite and the amount added. The material may have two types of pores: open and closed pores. The open pores, also called interconnected pores, are those which are in contact with the external surface of the material, being very useful for the manufacture of ceramic filters. A high number of closed pores are important for the manufacturing of materials used in thermal applications. There are many methods for obtaining porous ceramics, in general consisting in adding to the ceramic matrix organic particles, which volatilize during the first heat-up. The objective of this study was to produce ceramic composite nanostructure of alumina and yttria stabilized zirconia (Y-TZP) with micrometric pore sizes. The effects of ZrO2 additions in the mechanical properties of Al2O3 have been intensively investigated, due to the possible increase of the mechanical strength of this material. The organic particles used to create the pores were CMC and PVC. The microstructure of the porous ceramic samples obtained was evaluated considering the degree of sinterization of the nanoparticles, pores formation, porosity, specific surface of the pores and the distribution of the interconnecting pores.
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