THERMOELASTIC PROPERTIES OF BERYL, TOPAZ, DIASPORE, SANIDINE AND PERICLASE

被引：38

作者：

HAUSSUHL, S

机构：

[1] Institut für Kristallographie der Universität zu Köln, D-5000 Köln 1

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 1993年 / 204卷

关键词：

ELASTIC CONSTANTS; THERMOELASTIC CONSTANTS; BERYL; TOPAZ; DIASPORE; SANIDINE; MGO;

D O I：

10.1524/zkri.1993.204.Part-1.67

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Elastic and thermoelastic constants of beryl (Be3Al2Si6O18), topaz (Al2F2SiO2), diaspore (AlOOH), sanidine (K0.89Na0.11AlSi3O8) and periclase (MgO) have been determined from ultrasonic resonance frequencies of thick plates. The mean elastic stiffnesses of diaspore and corundum and also of sanidine and alpha-quartz are closely related. Correlations between thermoelastic properties and thermal expansion are discussed. Crystals with a close-packed structure of oxygen ions exhibit much larger absolute values for the temperature derivative of the mean elastic stiffness than crystals with smaller packing density such as certain tecto- and ino-silicates.

引用

页码：67 / 76

页数：10

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