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alpha-SiAlON ceramics with elongated grain morphology using an alternative sintering additive
(Elsevier B.V., 2004-04-01)
In this work, the use of a natural yttrium oxide and rare earth oxide solid solution (CRE2O3) as stabilizers of the alpha-Si3N4 phase to form alpha-SiAlON has been investigated. This oxide mix is produced at FAENQUIL-DEMAR, ...
alpha-SiAlON ceramics with elongated grain morphology using an alternative sintering additive
(Elsevier B.V., 2004-04-01)
In this work, the use of a natural yttrium oxide and rare earth oxide solid solution (CRE2O3) as stabilizers of the alpha-Si3N4 phase to form alpha-SiAlON has been investigated. This oxide mix is produced at FAENQUIL-DEMAR, ...
Development of alpha-SiAlON-SiC ceramic composites by liquid phase sintering
(Elsevier B.V., 2007-01-01)
In this work, in situ alpha-SiAlON-SiC ceramic composites were obtained,by, liquid phase sintering, using SiC as reinforcement. Different beta-SiC powder contents (0-20 wt.%), were added to Si3N4-AlN-RE2O3. powder mixtures, ...
Método sol-gel modificado para obtenção de alumina nanoencapsulada com terras raras
(Associação Brasileira de Cerâmica, 2005-03-01)
Neste trabalho, alfa-alumina foi nanoencapsulada com óxido de lantânio usando um método sol-gel modificado. Um precursor polímero de lantânio foi usado para encapsular a alfa-Al2O3, dispersa em água. A influência da ...
Método sol-gel modificado para obtenção de alumina nanoencapsulada com terras raras
(Associação Brasileira de Cerâmica, 2005-03-01)
Neste trabalho, alfa-alumina foi nanoencapsulada com óxido de lantânio usando um método sol-gel modificado. Um precursor polímero de lantânio foi usado para encapsular a alfa-Al2O3, dispersa em água. A influência da ...
Development of alpha-SiAlON-SiC ceramic composites by liquid phase sintering
(Elsevier B.V., 2014)
Synthesis of homoallylic oxygenated alpha-methylene-gamma-butyrolactones: a model for preparing biologically active natural lactones
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
In this Letter we describe a 12% overall yield synthesis of a model for homoallylic oxygenated alpha-methylene-gamma-butyrolactones with relative stereochemistry defined by selective hydrogenation with Rh/Al(2)O(3). The ...
Método sol-gel modificado para obtenção de alumina nanoencapsulada com terras raras
(Associação Brasileira de Cerâmica, 2014)