原位测量金刚石压砧在高压下的杯型形变  

In Situ Measurement of the Cupping Deformation of Diamond Anvil under High Pressures

作　　者：刘盛刚[1] 敬秋民[1] 陶天炯[1] 马鹤立[1] 王翔[1] 翁继东[1] 李泽仁[1] 

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621999

出　　处：《高压物理学报》2018年第2期39-43,共5页Chinese Journal of High Pressure Physics

基　　金：国家自然科学基金(11604313);中国工程物理研究院科学技术发展基金(2013B040162)

摘　　要：基于白光频域干涉的基本原理,提出了一种可实现高压下金刚石压砧杯型形变原位测量的方法。简单介绍了利用频域干涉技术测量金刚石压砧在高压下的杯型形变的基本原理,并开展了实验研究,实验最高压力达到42.1GPa。实验结果显示,金刚石压砧的杯型形变与压力呈线性关系,最大值达到11.1μm,从实验上证实了最近的有限元数值模拟结果。In this research we presented a novel method based on frequency domain interferometry to in situ measure the cupping deformation of diamond anvils under high pressures.First we introduced the working principle of the cupping deformation measurements based on the frequency domain interferometry,and then we carried out the experiments under high pressures.The cupping deformation of diamond anvils is obtained under high pressures up to 42.1 GPa,and its maximum value reaches 11.1μm.The experimental results show that the cupping deformation increases linearly with the pressure.Our work verify the recent finite element modeling calculations.

关 键 词：高压 频域干涉 金刚石压砧 杯型形变 

分 类 号：O521.3[理学—高压高温物理] TN247[理学—物理]