Preparation and characterization of high-temperature resistant ZrC-ZrB₂ nanocomposite ceramics derived from single-source precursor

详细信息    查看全文

• 作者：Shugang Chen ; Yanzi Gou ; ^{y.gou2012@hotmail.com} ; Hao Wang ; Ke Jian ; Jun Wang ^{wangjun_cfc@nudt.edu.cn}
• 关键词：Precursor ; ZrC-ZrB2 ; Ceramization ; High-temperature resistance ; Oxidation resistance
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：5 March 2017
• 年：2017
• 卷：117
• 期：Complete
• 页码：257-264
• 全文大小：1962 K
• 卷排序：117

文摘

Precursors were synthesized by reactions of allyl amine, ZrCl4, borane and the Grignard reagent (allyl-MgCl). Ceramization processes of the ZrNCB precursors were analyzed and ZrC-ZrB2 ceramics were obtained. The obtained nanocomposite ceramics have good high-temperature stability up to 2000 °C with dense and nano scaled structure. The ZrC-ZrB2 ceramics also have excellent stability at 1700 °C under air due to the oxidation layer formed on the surface.