Unit-cell volume of CaSiO3 davemaoite up to 61 GPa and 1900 K

In situ P-V-T measurements of CaSiO3 davemaoite were performed using a multianvil apparatus equipped with sintered diamond anvils and synchrotron radiation X-rays. Five single diffraction peaks, corresponding to the (110), (200), (211), (220), and (310) lines of the cubic perovskite structure were used to determine the unit-cell volume of davemaoite up to 61 GPa and 1900 K. The current dataset presents unit-cell volume of davemaoite as function of pressure and temperature for five independent runs.本研究采用配备烧结金刚石压砧的多砧压机与同步辐射X射线，开展了硅酸钙戴莫矿（CaSiO₃ davemaoite）的原位压力-体积-温度（P-V-T）测量。选取对应立方钙钛矿结构(110)、(200)、(211)、(220)与(310)晶面的5个独立衍射峰，用于测定压力最高达61吉帕斯卡（GPa）、温度最高达1900开尔文（K）条件下戴莫矿的晶胞体积。本数据集收录了5组独立实验中，戴莫矿晶胞体积随压力与温度变化的关系数据。