HAFNIUM-IRIDIUM SYSTEM

被引：14

作者：

COPELAND, MI

GOODRICH, D

机构：

[1] Albany Metallurgy Research Center, U. S. Department of the Interior, Bureau of Mines, Albany

来源：

JOURNAL OF THE LESS-COMMON METALS | 1969年 / 18卷 / 04期

关键词：

D O I：

10.1016/0022-5088(69)90004-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The U. S. Bureau of Mines has studied hafnium-iridium phase relations by metallography, thermal analysis, electron-beam microprobe, and X-ray diffraction. Four intermediate phases were identified as follows:. {A table is presented}. Eutectic and eutectoid reactions occur between hafnium and Hf2Ir at 1425 °C and 1375 °C, respectively. Also, eutectics occur between HfIr and HfIr3 at 2085 °C, and between HfIr3 and iridium at 2250 °C. Each of the phases occurs over a range of compositions, except Hf5Ir3 which is nearly stoichiometric. © 1969.

引用

页码：347 / &