CHARACTERIZATION OF DEFECTS IN METALLIC GLASSES

被引：4

作者：

CALVO, M

机构：

[1] Laboratoire de Science et Génie des Matériaux Métalliques, URA 159, Ecole des Mines, 54042 Nancy Cedex, Parc de Saurupt

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1991年 / 134卷

关键词：

D O I：

10.1016/0921-5093(91)90903-Z

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Many properties of metallic glasses, especially mechanical ones, result from the motion of defects or free volume. However, the main difficulty in defining defects or free volume is to choose an appropriate reference. We have modified, in the sense of signal processing, the global method proposed by P. J. Steinhardt et al. to detect bond-orientational order. The resulting local method allows us to quantify the distortion of a given polyhedron in relation to chosen references. Such a method allows us consequently to solve the problem of reference in the definition of defect and free volume.

引用

页码：968 / 974

页数：7