金属-陶瓷梯度材料的热应力缓和特性设计  

DESIGN OF THERMAL STRESS RELAXATION OF METAL-CERAMIC FUNCTIONALLY GRADIENT MATERIALS

作　　者：张开银[1] 吕运冰[1] 温冬生 

机构地区：[1]武汉交通科技大学,武汉430063

出　　处：《黄淮学刊（自然科学版）》1997年第2期18-23,共6页

基　　金：国家自然科学基金;武汉市青年科技晨光计划资助

摘　　要：以一金属-梯度材料-陶瓷的复合圆简为研究对象，研究了功能梯度材料组份连续变化论况下的温度分布和热应力分布规律；并根据强度理论，就ZrO2Ti－6AI－4V梯度材料的热应力分布进行了组份分布的统和特性设计．计算结果表明：金属-陶瓷梯度材料具有较好的热应力缓和性，且其模型具有较广的适用性．In this paper,by studying a laminated cylinder made of three layers of metal-func-tionally gradient materialceramic, the formulas of the temperature and the steady thermalstresses in the cylinder are obtained. Based on the strength theory, the design of thermalstress relaxation was carred out under different ZrO2/Ti-6Al-4V FGM compositions. Thecalculated results show that the functionally gradient material has better thermal stresses re-laxation and the model is more practical.

关 键 词：功能梯度材料 热应力 金属陶瓷 复合材料 

分 类 号：TB33[一般工业技术—材料科学与工程] O343.6[理学—固体力学]