PCD弹性模量、泊松比的测试实验研究  

Lab Test of PCD's Young's Modulus and Poisson's Ratio

作　　者：徐根[1] 陈枫[2] 马春德[2] 徐国平 

机构地区：[1]中南大学资源与安全工程学院,湖南长沙410083 [2]中南大学现代分析测试中心,湖南长沙410083 [3]金瑞新材料科技股份有限公司,湖南长沙410012

出　　处：《石油钻探技术》2009年第2期63-65,共3页Petroleum Drilling Techniques

基　　金：博士点基金项目"油田钻探用金刚石复合片热残余应力致裂与止裂研究"(编号:20070533113)部分研究成果

摘　　要：弹性模量、泊松比作为PDC的重要物性参数,其取值的精确与否将直接影响到PDC其他的力学性能。利用Instron1342电液伺服材料试验机,采用简单的压缩加载实验,成功测得了聚晶金刚石(PCD)的弹性模量、泊松比,且弹性模量最大误差不超过6%,泊松比最大误差不超过8%,均在允许范围之内,测试结果相当理想。该实验证明,用压缩加载实验来测试PCD的弹性模量和泊松比是可行的,且该方法简单、可靠,测试费用低。Young＇s modulus and Poisson＇s ratio are two important physical parameters of polycrystalline diamond compacts （PDC）. Instron-1342 testing machine was used to measure the Young＇s modulus and Poisson＇s ratio of polycrystalline diamond （PCD）. Using compression loading test the Young＇s modulus and Poisson＇s ratio of PCD was measured successfully and the relative error is less than 6 % for Young＇s modulus and less than 8% for Poisson＇s ratio which both are in the acceptable range. The results indicate that using compression loading test to test PCD＇s Young＇s modulus and Poisson＇s ratio is simple, reliable and cost-effective.

关 键 词：聚晶金刚石 弹性模量 泊松比 应变 测试 

分 类 号：TH145.13[一般工业技术—材料科学与工程]