EXAFS STUDY OF CHEMICAL SHORT-RANGE ORDER IN AMORPHOUS NIXTI1-X ALLOYS

被引：12

作者：

CHARTIER, P ^{[1
]}

MIMAULT, J ^{[1
]}

GIRARDEAU, T ^{[1
]}

JAOUEN, M ^{[1
]}

TOURILLON, G ^{[1
]}

机构：

[1] LAB UTILISAT RAYONNEMENT ELECTROMAGNET,F-91405 ORSAY,FRANCE

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 194卷 / 01期

关键词：

D O I：

10.1016/0925-8388(93)90649-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Extended X-ray absorption fine structure (EXAFS) measurements of amorphous NixTi1-x alloys produced by planar magnetron sputtering were obtained using the transmission detection technique at both Ti and Ni absorption K edges. The local environment was determined around the two atomic species by fitting the filtered EXAFS functions. The result reflects the presence of chemical short-range order (CSRO) which favours unlike atomic bonds. Using Miedema's semi-empirical model, the CSRO in amorphous NiTi1-x is found to be intermediate between that of a random alloy and that of an ordered crystalline alloy. The results are compared with those of other amorphous alloy systems.

引用

页码：77 / 85

页数：9

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