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CLC number: TB114.3; O224; O211.6
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Study on the failure mechanism of Ag-Ce contacts in DC level
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MENG Fan-bin, LU Jian-guo, LU Ning-yi, CHEN Zhi-chao, CHEN Qi. Study on the failure mechanism of Ag-Ce contacts in DC level[J]. Journal of Zhejiang University Science A, 2007, 8(3): 449-452.
@article{title="Study on the failure mechanism of Ag-Ce contacts in DC level",
author="MENG Fan-bin, LU Jian-guo, LU Ning-yi, CHEN Zhi-chao, CHEN Qi",
journal="Journal of Zhejiang University Science A",
volume="8",
number="3",
pages="449-452",
year="2007",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2007.A0449"
}
%0 Journal Article
%T Study on the failure mechanism of Ag-Ce contacts in DC level
%A MENG Fan-bin
%A LU Jian-guo
%A LU Ning-yi
%A CHEN Zhi-chao
%A CHEN Qi
%J Journal of Zhejiang University SCIENCE A
%V 8
%N 3
%P 449-452
%@ 1673-565X
%D 2007
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.A0449
TY - JOUR
T1 - Study on the failure mechanism of Ag-Ce contacts in DC level
A1 - MENG Fan-bin
A1 - LU Jian-guo
A1 - LU Ning-yi
A1 - CHEN Zhi-chao
A1 - CHEN Qi
J0 - Journal of Zhejiang University Science A
VL - 8
IS - 3
SP - 449
EP - 452
%@ 1673-565X
Y1 - 2007
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2007.A0449
Abstract: Nominal contact resistance, minimum erosion and material transfer are required with low cost materials working in a wide currents range for DC relays. Ag-Ni contact materials have low contact resistance, but the erosion and material transfer are large at high current level. Ag-SnO2 contact materials have good anti-welding properties and resistance to arc erosion, but they have large contact resistance during working and are easily block SnO2 from flocking together on the surface at low current level. In this paper, the failure mechanisms of Ag-Ce contact material were studied. The surface morphologies of the contacts after electrical endurance test for Ag-Ce contact material were compared with that of Ag-Ni and Ag-SnO2 contact materials. The effect of Ce on the surface morphologies of the contacts after electrical endurance test was analyzed.
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