Pressure fixed points between 100 and 200 kbar based on the compression of NaCl
Pressure fixed points between 100 and 200 kbar based on the compression of NaCl
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DOI：
10.1063/1.323090
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发表时间：
1976-07
影响因子：
3.2
通讯作者：
T. Yagi;S. Akimoto
中科院分区：
文献类型：
--
作者：
T. Yagi;S. Akimoto
采用X射线衍射技术，以NaCl为内压标准，测量了Pb、ZnS和GaAs三种材料的相变压力。本研究使用了立方砧型高压装置和高功率X射线衍射系统。根据NaCl的德克尔状态方程，确定了Pb在升压和降压循环中的相变压力为142±3和111±2 kbar，ZnS为162±4和110-100 kbar，GaAs为193±5和115-100 kbar。这些值和该实验室报告的高Ba转变压力（在压力升高和降低循环中为126±2和111±2 kbar）形成了一组室温下100和200 kbar之间的压力固定点。
Transformation pressures in three materials, Pb, ZnS, and GaAs, were measured by means of an x‐ray diffraction technique using NaCl as an internal pressure standard. A cubic‐anvil type of high‐pressure apparatus and a high‐power x‐ray diffraction system were used for this study. Based on Decker′s equation of state for NaCl, transition pressures in the increasing and decreasing pressure cycle were determined as follows: for Pb 142±3 and 111±2 kbar, for ZnS 162±4 and 110–100 kbar, and for GaAs 193±5 and 115–100 kbar. These values and the high Ba transformation pressure reported from this laboratory (126±2 and 111±2 kbar in the increasing and decreasing pressure cycle) form a set of pressure fixed points between 100 and 200 kbar at room temperature.