摘要
本文研制成功的新型陶瓷刀具材料—ＳｉＣ晶须（ＳｉＣｗ）增韧和ＳｉＣ颗粒弥散增韧Ａｌ２Ｏ３陶瓷刀具Ｊｘ－２－Ｉ，该刀具材料具有高的抗弯强度和断裂韧性等优点；对比Ａ（Ａｌ２Ｏ３）、ＡＰ（Ａｌ２Ｏ３／ＳｉＣｐ）、ＡＷ（Ａｌ２Ｏ３／ＳｉＣｗ）、Ｊｘ－１（Ａｌ２Ｏ３／ＳｉＣｗ）和Ｊｘ－２－１（Ａｌ２Ｏ３／ＳｉＣｐ／ＳｉＣｗ）等陶瓷材料的力学性能可以看出，在Ｊｘ－２－Ｉ材料中具有明显的增韧补强叠加效应；本文在热失配分析和微观结构观察的基础上详细研究了Ｊｘ－２－Ｉ刀具材料的增韧补强机理，系统研究了Ｊｘ－２－Ｉ中各种增韧补强机理之间的协同效应。
? An advanced ceramic tool material Jx-2-I has been developed by means of silicon carbide whisker(SiCw) reinforcement and silicon carbide particle (SiCp) dispersion alumina.The material has the advantage of high bending strength and fracture toughness.Compared with the mechanical properties of A(Al_2O_3),AP(Al_2O_3/SiCp),AW(Al_2O_3/SiCw),Jx-1(Al_2O_3/SiCw) and Jx-2-I(Al_2O_3/SiCp/SiCw),it confirms that Jx-2-I composite has obvious additive effect of both reinforcing and toughening.The reinforcing and toughening mechanisms of Jx-2-I composite have been studied based on the analysis of thermal-expansion mismatch and the observation of microstructure.Synergistic effects of toughening and strengthening for Jx-2-I have been researched systematically.
出处
《中国陶瓷》
CAS
CSCD
北大核心
1998年第1期20-26,共7页
China Ceramics
基金
国家自然科学基金
关键词
陶瓷刀具
协同效应
复合陶瓷
增韧
计算
陶瓷
Advanced ceramic tool Alumina Silicon carbide whisker reinforcing Silicon cartide particle dispersion Synergistic effect
