Crystallisation process in (FeCo)78Nb6(BCu)16 alloys

被引：48

作者：

Blázquez, JS ^{[1
]}

Conde, CF ^{[1
]}

Conde, A ^{[1
]}

机构：

[1] Univ Seville, CSIC, Inst Ciencia Mat, Dept Fis Mat Condensada, E-41080 Seville, Spain

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2001年 / 287卷 / 1-3期

关键词：

D O I：

10.1016/S0022-3093(01)00562-2

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：

Crystallisations of FC78-xCoxNb6B16-yCuy (x = 18, 39, 60; y = 0, 1) alloys at different heating rates have been studied by differential scanning calorimetry (DSC), thermomagnetic gravimetry (TMG), and X-ray diffraction techniques. alpha -Fe,Co nanometer sized crystals dispersed in a residual amorphous matrix are obtained in a first stage and the crystallisation is completed after a second stage with the formation of various boride phases. Cc alloying decreases the temperature for the crystallisation onset and increases the Curie temperature of the amorphous phase. The volume fraction and the lattice parameters of the alpha -Fe,Co crystals decrease as the Cc content in the alloy increases. The Avrami exponents for the first crystallisation stage are approximately 1. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：187 / 192

页数：6

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