SHORT-RANGE ORDER IN GD4CU3 METALLIC-GLASS

被引：9

作者：

PETKOV, V ^{[1
]}

APOSTOLOV, A ^{[1
]}

SASSIK, H ^{[1
]}

机构：

[1] VIENNA TECH UNIV,INST EXPTL PHYS,A-1040 VIENNA,AUSTRIA

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1990年 / 122卷 / 03期

关键词：

D O I：

10.1016/0022-3093(90)90990-4

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 pair correlation function for Gd4Cu3 metallic glass has been determined using X-ray diffraction. A model for the Gd4Cu3 glassy structure has been selected by comparing the experimental pair correlation function with model ones for disordered cyrstal structures. The structure model has been verified by means of a non-linear squares profile analysis of the experimental pair correlation function. It has been established that the local atomic arrangement in the Gd4Cu3 metallic glass resembles that in tetrahedrally close-packed Zr4Al3-type (Frank-Kasper type) crystalline compounds. Similarity in the topological short-range order of both glassy structures has been found by comparing the characteristic structural parameters of Gd4Cu3 and of Gd4Al3 metallic glasses. This indicates that the second metallic component (Al; Cu) does not play an important role in the formation of the local order in these glasses. © 1990.

引用

页码：262 / 268

页数：7

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