Thermal Shock Resistance of Liquid Phase Sintered SiC

Roberta Monteiro de Mello; Ana Helena de Almeida Bressiani

doi:10.4028/www.scientific.net/MSF.881.103

Paper Titles

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Effect of TiB₂ on Pressureless Sintering and Hot Pressing of ZrB₂
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The Influence of Microstructure, Temperature and Sintering Level on Electric Properties of Electrical Insulators Obtained from Raw Materials of Rio Grande do Norte - Brazil
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Effect of CuO-TiO₂ Eutectic on Thermal and Electrical Conductivities of CaCu₃Ti₄O₁₂ Ceramics
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HomeMaterials Science ForumMaterials Science Forum Vol. 881Thermal Shock Resistance of Liquid Phase Sintered...

Thermal Shock Resistance of Liquid Phase Sintered SiC

Abstract:

The aim of this study was to evaluate the effect of Y₂O₃:Al₂O₃additives and sintering temperature on thermal shock resistance of silicon carbide sintered via liquid phase. Silicon carbide samples containing 10 mol% Y₂O₃:Al₂O₃ (1:3 and 1:4) were prepared, compacted and sintered at 1750, 1850 and 1950 °C in a graphite resistive furnace. Thermal shock resistance was evaluated after each thermal cycle performed at 600, 750 and 900 °C followed by abrupt cooling in water. Samples with two Y₂O₃:Al₂O₃ proportions did not show major differences when sintered at the same temperature, though, rising the sintering temperature improves Y₂O₃:Al₂O₃ modified-SiC thermal shock resistance.

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Materials Science Forum (Volume 881)

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103-108

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.881.103

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Online since:

November 2016

Authors:

Roberta Monteiro de Mello*, Ana Helena de Almeida Bressiani

Keywords:

Liquid Phase, Silicon Carbide, Thermal Shock

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