The rapid development of newly ceramic industries,such as high thermal conductive ceramic substrates for chips,have pushed the material performance testing technologies towards batch and high efficiency.Fracture toughness is an im-portant mechanical property of ceramic materials,but there existing some problems,such as large error in test results,cumbersome and inefficient sample preparation process,which limits its role in industrial R&D,design and production In this paper,the related testing techniques and corresponding testing indexes of material toughness are su mmarized,inclu-ding fracture toughness,fracture energy,J integral,impact toughness,etc.,and the fracture toughness and related me-chanical properties of co mmon ceramic materials are compared and analyzed in order to find an efficient and accurate evalu-ation method.The applicable basis and scope of bending strength of ceramic materials are considered,and the accuracy is verified by relevant literature data.This paper will provide a new idea for batch industrial R&D design and toughness evalu-ation in the production process of ceramic materials.
国家科技期刊平台
NSTL
维普
万方数据
