MECHANICAL RELAXATIONS IN MIXED-ALKALI SILICATE GLASSES .I. RESULTS

被引：142

作者：

SHELBY, JE

DAY, DE

机构：

[1] Ceramic Engineering Department, University of Missouri, Rolla, Missouri

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1969年 / 52卷 / 04期

关键词：

D O I：

10.1111/j.1151-2916.1969.tb13358.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The internal friction of silicate glasses containing mixtures of Li‐Na, Li‐K, Li‐Rb, Li‐Cs, Na‐K, Na‐Rb, Na‐Cs, and K‐Rb was measured from ‐180° to 500°C at a frequency of 0.4 Hz. Values for the density, index of refraction, and dynamic shear modulus are also reported. With small additions of a second alkali, a new internal friction peak was observed in addition to the two peaks originally present in the glasses containing only one alkali. The magnitude of this new peak was especially sensitive to small amounts (less than 1 mol%) of a second alkali. Activation energies are given for the alkali peak in Li‐Cs glasses and for the new internal friction peak in Li‐Na glasses. Copyright © 1969, Wiley Blackwell. All rights reserved

引用

页码：169 / &

共 17 条

[1] PROPERTIES OF SODA ALUMINOSILICATE GLASSES .2. INTERNAL FRICTION [J].