工程陶瓷弯曲强度测试中不确定度的评定  

Evaluation of the Uncertainty in the Flexural Strength Testing of Technical Ceramic

作　　者：苏小萍[1] 

机构地区：[1]武汉理工大学材料研究与测试中心,武汉430070

出　　处：《武汉理工大学学报》2007年第6期20-22,26,共4页Journal of Wuhan University of Technology

摘　　要：简要介绍了测量不确定度的基本概念,对TiB2陶瓷弯曲强度测试结果的相对不确定度进行了评定,对于工程陶瓷这类测试结果离散性比较大的脆性材料,用高精度的精密仪器测试时,A类标准不确定度是合成标准不确定度的主要来源,为其他工程陶瓷力学性能测试结果不确定度的评定提供了参考。The basic concept for the uncertainty of the testing has been described in this article, the relative uncertainty of the flexural strength for the TiB2 ceramic has been evaluated. For brittle materials such as technical ceramic, type A evaluation of uncertainty is the main source of combined standard uncertainty when testing in a advanced instrument. This can be a reference for evaluating other mechanical properties of ceramic.

关 键 词：工程陶瓷 不确定度 评定 

分 类 号：TG113.25[金属学及工艺—物理冶金]