【作者】 张海潮； 徐利华； 徐斌； 杜玉峰； 刘明； 姚云；

【Author】 Zhang Haichao Xu Lihua Xu Bin Du Yufeng Liu Ming Yao YunInstitute of System Engineering,Huazhong University of Science and Technology,Wuhan,430074 Department of Inorganic Materials,University of Science and TechnologyBeijing,Beijing, 100083 Luoyang Helisi High-temp StructureCeramics Co. ,Ltd. ,Luoyang,471003

【机构】 华中科技大学系统工程研究所； 北京科技大学无机非金属材料系； 洛阳和利斯高温结构陶瓷有限公司；

【摘要】 本文将系统论和优化设计方法用于研制复相耐磨陶瓷材料中,研究表明:(1)从使用工况-耐磨机理确定材料特性-优化选材及弥散相设计-复合材料制备技术-材料性能评估-耐磨性预测-使用等过程出发,揭示系统的层次和系统处理的优化控制,突破传统研究思路和方法,可实现制备高性能耐磨陶瓷的目的。(2)对ZrO2与TiC(SiC)复合Al2O3陶瓷进行组分设计,其材料特性(HV,KIC)达到预定的目标函数。模拟喷嘴使用工况,并得到材料耐磨综合指标预测值与实验值相符的结果。同时还强调材料应用过程中的剪裁设计环节。更多还原

【Abstract】 The paper introduces systematic theory and optimal design method into preparation of erosive wear resistant multiphase ceramics. The results show that optimal control of systematic level and treatment can be achieved in accordance with the procedure of application, determination of material properties with wear mechanism, optimal design for matrix material and additives, material composite processing, evaluation of mechanical properties, prediction of wear resistant properties etc. This new route can overcome blindness of traditional method and direct preparation of excellent resistant wear composites. Composition design has done on ZrO2 and TiC(SiC) hybrid reinforced Al2O3 ceramic,and their properties (HV, KIC) may reach the expected objective function. The estimated value of relative comprehensive properties was confirmed by the experimental results through simulation of nozzle mate rials. Also,the tailor & design ideology for applied process should be emphasized.更多还原