Crystallographic Properties of Iridium Assessment of properties from absolute zero to the melting point
Crystallographic Properties of Iridium Assessment of properties from absolute zero to the melting point
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DOI：
10.1595/147106710x493124
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发表时间：
2010-04-01
影响因子：
--
通讯作者：
Arblaster, John W.
中科院分区：
文献类型：
--
作者：
Arblaster, John W.
在回顾了1907年至今发表的文献后，对铱在绝对零度到熔点温度下的晶体学性质进行了评估。然而，2000 K以上的理论值被认为是暂定的，因为该区域的实验热膨胀数据质量较差。用选定的热膨胀系数值和热膨胀引起的长度变化的测量值来计算晶格参数、原子间距离、原子和摩尔体积以及密度随温度的变化。这些数据列于表中。文献中可获得的数据与本文所选值的比较如图所示。在293.15 K（20℃）时，铱的密度为22,562 kg m（-3）。
The crystallographic properties of iridium at temperatures from absolute zero to the melting point are assessed following a review of the literature published during the period 1907 to date. However, the theoretical values above 2000 K are considered to be tentative because of the poor quality of the experimental thermal expansion data in this region. Selected values of the thermal expansion coefficient and measurements of length change due to thermal expansion have been used to calculate the variation with temperature of the lattice parameter, interatomic distance, atomic and molar volumes, and density. This data is presented in the Tables. Comparison of the data available in the literature with the selected values presented in this paper is shown in the Figures. The density of iridium at 293.15 K (20 degrees C) is 22,562 kg m(-3).