Note: a novel method to measure the deformation of diamond anvils under high pressure.
Note: a novel method to measure the deformation of diamond anvils under high pressure.
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DOI：
10.1063/1.4873335
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发表时间：
2014-04
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影响因子：
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通讯作者：
Shenggang Liu;Zeren Li;Q. Jing;Yi Zhang;Heli Ma;Tianjiong Tao;Xiang Wang;Yan Bi;Jidong Weng;Ji‐an Xu
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文献类型：
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作者：
Shenggang Liu;Zeren Li;Q. Jing;Yi Zhang;Heli Ma;Tianjiong Tao;Xiang Wang;Yan Bi;Jidong Weng;Ji‐an Xu
提出了一种基于光纤频域干涉仪的金刚石顶锤高压变形测量方法。文中给出了其工作原理和应用实例。在37.7GPa压力下，金刚石顶锤的变形量随压力的增加而增大，在18.8GPa压力下，金刚石顶锤的变形量最大可达4.5 μm，并可直接观察到杯突效应。
A novel and simple method based on optical-fiber frequency domain interferometer to measure the deformation of diamond anvils under high pressure is presented. The working principle and application examples are given in this paper. The deformation of diamond anvils is obtained up to 37.7 GPa, our results verify that the deformation has an obvious difference between uploading and downloading at a given pressure, the maximum difference is up to 4.5 μm at 18.8 GPa, and the cupping effect is observed directly.