PHASE RELATIONSHIPS IN HIGH-LIME PART OF SYSTEM CAO-NB2O5

被引：12

作者：

JONGEJAN, A

机构：

[1] Physical Chemistry Section, Mineral Sciences Division, Mines Branch, Department of Energy, Mines and Resources

来源：

JOURNAL OF THE LESS-COMMON METALS | 1969年 / 19卷 / 03期

关键词：

D O I：

10.1016/0022-5088(69)90095-2

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：

Liquidus temperatures have been determined in the high-lime part of the system CaO-Nb2O5 with the high-temperature hot-stage microscope. The existence of a compound having the composition 11CaO·2Nb2O5 and melting congruently at 2105 °C was indicated and also the probable existence of a compound with the composition 5CaO·Nb2O5, melting incongruently at 2065 °C. Phase relations below 1600 °C of compositions near 4CaO.Nb2O5 were interpreted from the results of differential thermal analyses and X-ray diffraction powder patterns of samples quenched from various temperatures. © 1969.

引用

页码：193 / &

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