Sol-gel process and high-temperature property of SiO₂/ZrO₂-SiO₂ composites

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• 作者：Xiang Yang^a ; ^{13873149543.@163.com" class="auth_mail" title="E-mail the corresponding author} ; Wang Qing^a ; Cao Feng^a ; Ma Yin-Wei^b ; Quan Dong-liang^b
• 关键词：Sol-gel ; Composites ; High-temperature ; Mechanical properties
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：43
• 期：1
• 页码：854-859
• 全文大小：2474 K

文摘

SiO₂/ZrO₂-SiO₂ composites were fabricated by the sol-gel process, and their high-temperature flexural properties were explored. The oxidation behavior at 1200 °C and 1500 °C was also investigated. At high temperature, the composites showed typical brittle fracture. SiO₂/ZrO₂-SiO₂ composites had higher flexural strength and elastic modulus at high temperature than SiO₂/SiO₂ composites. SiO₂/ZrO₂-SiO₂ composites, which were fabricated by sol-gel process, showed a higher high temperature lifetime.