Experimental design applied to silicon carbide sintering

Autor(es)

Marchi, Juliana ; Bressiani, José Carlos ^[2] ; Bressiani, Ana Helena de A.

• Tipo de documento: Artigo Científico
• Fonte: Journal of the American Ceramic Society; v. 86, n. 7, p. 1208-1210, July 2003.
• Área do conhecimento: Engenharias - Engenharia de Materiais e Metalúrgica
• Assunto(s): Materiais não metálicos Polímeros sintéticos Sinterização

Resumo

Silicon carbide is a promising structural ceramic used as abrasives and applied in metallurgical components, due to its low density, high hardness, and excellent mechanical properties. The composition and content of the additive can control liquid-phase sintering of SiC. Compositions based on the SiO2-Al2O3-RE2O3 system (RE = rare earth) have been largely used to promote silicon carbide densification, but most studies are not systematically presented. The aim of this work is to study the effect of several oxide additives in the SiO2-Al2O3-Y2O3 system on the densification of silicon carbide using experimental design. This technique seems to be effective in optimizing the values of maximum density with minimum weight loss. (AU)

• Processo FAPESP: 00/07717-8 - Processamento de cerâmicas avançadas à base de carbeto de silício
• Beneficiário: José Carlos Bressiani
• Modalidade de apoio: Auxílio à Pesquisa - Regular