摘要
采用多元回归分析,结合实验结果,研究复相陶瓷中的各弥散相组成与力学性能之间的定量关系.研究表明TiC与ZrO_2对Al_2O_3基陶瓷的硬度相对贡献值为1.66,与实际结果相吻合;建立材料强度与相变和颗粒弥散的计算模式,预测出最佳强度及相应组成体积分数;同时可预测出纳米-微米多层次复合陶瓷的断裂韧性及其组成,达到材料组分优化设计的目的。
The quantitative relationship between mechanical properties and dispersed phase contents has been investigated in this paper according to regressive anlysis of multi-parameter and experimental data. The results have indicated that the relative contribution value, 1.66, of SiC and ZrO_2 to Vicker hardness for alumina-matrix ceramic composite, is near to that of experimental result. Also, the calculating model on fracture strength of materials and transformation toughening and particulate strengthening is derieved, it can predict the optimal strength and related volume fraction of composite and realize the optimal composition design of materials. Meanwhile, the optimization of toughness for alumina matrix ceramic composites with reinforcement of both nano-particle and micro-particle can be obtained.
出处
《应用基础与工程科学学报》
EI
CSCD
1997年第3期262-267,共6页
Journal of Basic Science and Engineering
基金
国家自然科学基金重点项目资助
关键词
复相陶瓷
回归分析
优化设计
multiphase ceramics
regressive anlysis
optimal design
