ACCURATE THERMAL EXPANSIVITY MEASUREMENTS IN THE RANGE 1500-2000-K ARE NEEDED FOR MINERALS

被引：12

作者：

ANDERSON, OL ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES,DEPT EARTH & SPACE SCI,LOS ANGELES,CA 90024

来源：

INTERNATIONAL JOURNAL OF THERMOPHYSICS | 1991年 / 12卷 / 04期

关键词：

HIGH-TEMPERATURE DATA; MINERALS; THERMAL EXPANSIVITY; THERMODYNAMIC COMPUTATIONS;

D O I：

10.1007/BF00534231

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

It is shown that the future high-temperature thermodynamic computations for minerals now hinge on the extension of the measurement of the volume thermal expansivity, beta, up to 2000 K. At present many measurements of beta-end at about 1200-1500 K, but the extrapolations to 2000 K are fraught with large errors. A few years ago, the missing thermodynamic parameter at high temperatures was the bulk modulus (or its reciprocal compressibility). Now that measurements of the bulk modulus are being accurately measured at 1800 K, attention is focused on improving measurements of beta at higher temperatures.

引用

页码：757 / 767

页数：11

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