应用电子散斑法对金沉积薄片弹性模量和泊松比的测量  

Measurement of modulus of elasticity and Poissons’ ratio of galvano foils by speckle pattern interferometry

作　　者：周团锋[1] 张桂荣[1] 王新知[2] 

机构地区：[1]北京大学口腔医学院.口腔医院第一门诊部修复科,副主任医师北京100034 [2]北京大学口腔医学院.口腔医院修复科,主任医师教授北京100083

出　　处：《口腔颌面修复学杂志》2010年第4期247-250,共4页Chinese Journal of Prosthodontics

摘　　要：目的:测量金沉积薄片的弹性模量和泊松比,为金沉积修复体的生物力学分析提供准确的材料物理参数。材料与方法:制作一定长度和宽度的金沉积薄片试件2条,采用电子散斑法测量其弹性模量和泊松比。结果:实验测得金沉积薄片的弹性模量为50.5GPa,泊松比为0.44。结论:运用电子散斑法可以间接准确地测量金沉积薄片的弹性模量和泊松比。Objective：To measure the modulus of elasticity and Poisson＇s ratio of galvano foils for providing the exact data of material properties that can be used in the bio-mechanics analysis of galvano restorations.Methods： Two galvano slips are made for the measurement of both the modulus of elasticity and Poisson’s ratio by speckle pattern interferometry.Results： The modulus of elasticity of galvano slips is 50.5GPa,and Poisson’s ration of galvano slips is 0.44.Conclusion： The modulus of elasticity and Poisson’s ratio of galvano slips can be indirectly measured via speckle pattern interferometry with high accuracy.

关 键 词：金沉积 弹性模量 泊松比 电子散斑法 

分 类 号：R783.3[医药卫生—口腔医学]