Phase composition and physical properties of high-carbon Fe-C films

被引：0

作者：

Shpak, A. P. ^{[1
]}

Bashev, V. F. ^{[2
]}

Brekharya, G. P. ^{[3
]}

BoL'Shakov, V. I. ^{[4
]}

Beletska, O. E. ^{[2
,4
]}

Dotsenko, F. F. ^{[2
]}

Ryabtsev, S. I. ^{[2
]}

机构：

[1] NASU, GV Kurdyumov Inst Met Physi, UA-03680 Kiev 142, Ukraine

[2] Denpropetrovsk Natl Univ, UA-49050 Dnepropetrovsk, Ukraine

[3] Dneprodzerzhinsk State Tech Univ, UA-59118 Dnepropetrovsk, Ukraine

[4] Pridneprovsk State Academy of Bldg and Archititec, UA-49005 Dnepropetrovsk, Ukraine

来源：

METALLOFIZIKA I NOVEISHIE TEKHNOLOGII | 2007年 / 29卷 / 10期

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The formation conditions for metastable structures and phase transformations during the heat treatment of high-carbon Fe-C films (20-84 at.% C) are studied by X-ray analysis, electron microscopy, measuring of the relative electrical resistance, and magnetic measuring. The films of a Fe-C system are fabricated by modernized three-electrode ion-plasma sputtering. As shown, the films with 20-31% C in. an initial state have an X-ray amorphous structure; the films with 40-60% C have an amorphous structure. The transformation of a film structure from an amorphous state to an equilibrium one during an annealing occurs through the formation and subsequent decomposition of the intermediate metastable h.c.p. phase with a variable content. The causes and mechanism of high values of magnetic-rigidity characteristics in obtained high-carbon Fe-C films at optimal compositions and heat-treatment regimes are suggested. The precise values of temperature coefficient of resistance are determined for Fe-C films.

引用

页码：1369 / 1381

页数：13

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