放电等离子烧结
材料科学
微观结构
复合数
陶瓷
烧结
复合材料
等离子体
SPARK(编程语言)
计算机科学
量子力学
物理
程序设计语言
作者
Jimmy Kuo,Songbai Liu,Guohua Ma,Lilin Zhao
标识
DOI:10.1016/j.ceramint.2014.05.121
摘要
Abstract Dense composite ceramics composing of pyrochlore La 2 Zr 2 O 7 and metastable tetragonal (Zr 0.92 Y 0.08 )O 1.96 phases were synthesized by sol-spray pyrolysis method and were densified by using spark plasma sintering at 1450 °C. The microstructure and mechanical properties of the composites were studied. Microstructure analysis showed that particle size of the La 2 Zr 2 O 7 and (Zr 0.92 Y 0.08 )O 1.96 phases of the composites was in the range of 0.2–1.3 μm. The results of mechanical property measurement revealed that high fracture toughness, almost twice that of single phase La 2 Zr 2 O 7 has been achieved for the La 2 Zr 2 O 7 –(Zr 0.92 Y 0.08 )O 1.96 composite ceramics with 50 mol% 4YSZ addition. The improved toughness was attributed to crack blocking of the (Zr 0.92 Y 0.08 )O 1.96 crystals.
科研通智能强力驱动
Strongly Powered by AbleSci AI