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Laser fabrication of W-reinforced Cu layers: II. Electrical wear behavior in air and synthetic acid rain
P.K. Wong1; C.T. Kwok1,2; H.C. Man3; D. Guo1
2016-07-01
Source PublicationMaterials Chemistry and Physics
ISSN0254-0584
Volume177Pages:118-130
Abstract

In order to enhance the electrical sliding wear resistance and hence the lifespan of cp Cu for applications in electrical contacts, W-reinforced Cu layers were fabricated by laser surface modification on cp Cu. Compared with cp Cu, the hardness of the laser-fabricated layers with 55-60 wt% W was improved from 70 to 150 HV while electrical wear resistances in dry and wet conditions were improved by 3 orders of magnitude despite the increase in the interfacial contact resistance of the layers. The main contribution of electrical wear in synthetic acid rain is mechanical wear, with contribution of corrosion-wear synergism up to 32.8%, while corrosion alone is negligible.

KeywordComposites Copper Electrical Wear Laser Surface Modification Tungsten Wear-corrosion Synergism
DOIhttps://doi.org/10.1016/j.matchemphys.2016.04.004
URLView the original
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000376695400016
PublisherELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
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Citation statistics
Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Corresponding AuthorC.T. Kwok
Affiliation1.Department of Electromechanical Engineering, University of Macau, Macao, China
2.Institute of Applied Physics and Materials Engineering, University of Macau, Macao, China
3.Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, China
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau;  INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
P.K. Wong,C.T. Kwok,H.C. Man,et al. Laser fabrication of W-reinforced Cu layers: II. Electrical wear behavior in air and synthetic acid rain[J]. Materials Chemistry and Physics,2016,177:118-130.
APA P.K. Wong,C.T. Kwok,H.C. Man,&D. Guo.(2016).Laser fabrication of W-reinforced Cu layers: II. Electrical wear behavior in air and synthetic acid rain.Materials Chemistry and Physics,177,118-130.
MLA P.K. Wong,et al."Laser fabrication of W-reinforced Cu layers: II. Electrical wear behavior in air and synthetic acid rain".Materials Chemistry and Physics 177(2016):118-130.
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