Elastic properties of lanthanum aluminosilicate glasses

被引：37

作者：

Hwa, LG ^{[1
]}

Lee, TH

Szu, SP

机构：

[1] Fu Jen Catholic Univ, Dept Phys, Taipei 242, Taiwan

[2] Natl Chung Hsing Univ, Dept Phys, Taichung 40227, Taiwan

来源：

MATERIALS RESEARCH BULLETIN | 2004年 / 39卷 / 01期

关键词：

glasses; ultrasonic measurement; elastic properties;

D O I：

10.1016/j.materresbull.2003.09.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The elastic properties of two series of lanthanum aluminosilicate glasses (15La(2)O(3)-xAl(2)O(3)-(85 - X)SiO2 and 25La(2)O(3)-yAl(2)O(3)-(75 - y)SiO2, where x, y = 15, 20, 25, 30, 35 mol%), were obtained by the ultrasonic pulse-echo technique, at room temperature. The correlation of elastic stiffness, the cross-link density, and the fractal bond connectivity of these glasses are discussed. The derived experimental values of Young's modulus, bulk modulus, shear modulus and Poisson's ratio for our glasses are compared with those theoretically calculated values in terms of the Makishima-Mackenzie model. (C) 2003 Elsevier Ltd. All rights reserved.

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页码：33 / 40

页数：8

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