On the effect of sintering temperature on the fracture energy of an Alumina-Mullite-Zirconia castable at 600?C

Autor(es)

Vargas, R. ^{[1, 2]} ; Pinelli, X. ^[2] ; Smaniotto, B. ^[2] ; Hild, F. ^[2] ; Canto, R. B. ^{[3, 1]}

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn PPGCEM, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Paris Saclay, ENS Paris Saclay, CNRS, LMT Lab Mecan & Technol, F-91190 Gif Sur Yvette - France

^[3] Fed Univ Sao Carlos UFSCar, Dept Mat Engn DEMa, BR-13565905 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of the European Ceramic Society; v. 41, n. 7, p. 4406-4418, JUL 2021.
• Citações Web of Science: 3

Resumo

Refractory castables are utilized in hazardous environments and thus their reliability should be accurately evaluated to avoid incidents. This work aims to measure the fracture energy of a high-alumina refractory with mullite-zirconia aggregates at 600 ?C. Wedge Splitting Tests were performed on 5 samples with different sintering temperatures. Images were acquired and analyzed via Digital Image Correlation (DIC). Notch Opening Displacements were used to evaluate the fracture energy at room and high temperatures. For the studied material, a 50 ?C increase in the sintering temperature increased about 30% the fracture energy of the material, which is also higher at 600 ?C when compared to room temperature measurements. (AU)

• Processo FAPESP: 18/15266-0 - Detecção e quantificação de mecanismos de fratura de cerâmicas em temperatura ambiente e elevada via correlação de imagens digitais
• Beneficiário: Rodrigo Bresciani Canto
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 18/23081-0 - Análise dos mecanismos de fratura de refratários a temperatura ambiente e elevadas com o método da cunha e correlação de imagens
• Beneficiário: Rafael Vargas Maginador
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 18/02801-4 - Identificação de modelos de material para a simulação computacional da prensagem de pós
• Beneficiário: Rodrigo Bresciani Canto
• Modalidade de apoio: Auxílio à Pesquisa - Regular