AN EXACT MODEL OF DC JOULE HEATING IN AMORPHOUS METALLIC RIBBONS

被引：20

作者：

ALLIA, P

BARICCO, M

KNOBEL, M

TIBERTO, P

VINAI, F

机构：

[1] INST ELETTROTECN NAZL GALILEO FERRARIS, I-10125 TURIN, ITALY

[2] CONSORZIO INTERUNIV NAZL FIS MAT, TORINO SECT, TURIN, ITALY

[3] UNIV TURIN, DIPARTIMENTO CHIM INORGAN CHEM FIS & CHIM MAT, I-10125 TURIN, ITALY

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1994年 / 179卷

关键词：

D O I：

10.1016/0921-5093(94)90227-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A d.c. Joule heating technique allows new application-oriented crystallization products to be obtained from amorphous metallic ribbons under controlled conditions. The structural changes occurring in a material are continuously monitored through on-line measurements of the electrical resistance. Sample crystallization is often marked by a typical resistance bump. A general solution of the equation describing the evolution of the sample temperature and resistance in the course of d.c. Joule heating is found. The crystallization of Fe40Ni40B20, characterized by a strong emission of heat, is treated in detail. Specific parameters of the process are properly determined from a comparison with experimental results. The role of the transfer rate of the crystallization heat to the sample is briefly discussed.

引用

页码：361 / 365

页数：5

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