SELECTION OF ELECTRODES FOR THE "IN SITU" ELECTRICAL RESISTIVITY MEASUREMENTS OF MOLTEN ALUMINIUM

被引：6
|
作者：
Petric, M. [1 ]
Kastelic, S. [1 ,2 ]
Mrvar, P. [1 ]
机构：
[1] Univ Ljubljana, Fac Nat Sci & Engn, Dept Met & Mat, Ljubljana, Slovenia
[2] Inst Foundry & Heat Treatment, Ljubljana, Slovenia
来源：
JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY | 2013年 / 49卷 / 03期
关键词：
Electrical resistivity; Four-probe technique; Electrode material; Aluminium; SOLIDIFIED AL-FE; PHASE; CONDUCTIVITY; ALLOYS; ZN;
D O I：
10.2298/JMMB130118029P
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The aim of this paper is the selections of proper electrode material for four-probe technique electrical resistivity measurement of aluminium and aluminium alloys. The biggest problem of electrodes is oxidation during measurement causing high contact resistance and giving wrong results. Various materials have been tested and aluminium electrodes have been chosen. Advantage of aluminium electrodes is that they are melted in specimen right after the pouring and causing no interface which is resulting with any contact resistance. The device together with measuring cell for. in situ. measurement of electrical resistivity was developed using four-probe DC technique.
引用
收藏
页码：279 / 283
页数：5
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