Dislocations and the mechanical properties of stabilized ZrO2
Dislocations and the mechanical properties of stabilized ZrO2
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DOI：
10.1080/10420159108220816
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发表时间：
1991-11
影响因子：
1
通讯作者：
A. Domínguez-Rodríguez;A. Heuer;J. Castaing
中科院分区：
文献类型：
--
作者：
A. Domínguez-Rodríguez;A. Heuer;J. Castaing
摘要分析了立方ZrO2单晶的位错子结构和力学性能。位错速度的温度依赖性较复杂，在低温下，边段的运动速度快于螺段，而螺段的运动速度在高温下快于螺段。利用循环收缩技术，可以确定扩散最慢的物质的扩散系数。从佩尔机制和位错与点缺陷相互作用的角度分析了材料的力学性能。
Abstract The dislocation substructures and mechanical properties of cubic ZrO2 single crystals are analyzed. The temperature dependence of the dislocation velocity is complex, the edge segments moving faster than screw segments at low temperatures, while the screws are faster at high temperatures. Using the loop shrinkage technique, the diffusion coefficient of the slowest diffusing species can be determined. The mechanical properties are analyzed in terms of the Peierls mechanism and of interaction of dislocations and point defects.