Study of nanocomposite silver-based contact materials
Wang, JB; Li, YM; Wang, YP; Din, BJ
Corresponding AuthorWang, JB()
AbstractThe preparation method and arc erosion characteristics of the AgNi and AgSnO2 contacts materials which was fabricated by high-energy ball milling, hot pressing and sintering were studed. The powder morphology and microstructure of contact were analyzed by X-ray Diffraction (XRD), Scan Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The results shows that the grain size of composite powder has been fined, that the particle size of second phase was about 40 nm after high energy ball milling and the particles are dispersed in the Ag matrix in inlaying and welding, in witch the second phase aggregatin in the matrix and deposition on the grain bourdary that was caused by orthodox method has been abated. After hot pressing and annealing, there was not obviously growth of second phase and the particle size was about 50 nm. It was also found that the Ag film distributed on the grain boundary was retained in both contacts, which was propitious to the improvement of conductance capability. Compared with the commercial contacts, there was not obviously melting pool and splash of fused mass on the nanocomposite contact surface, which indicated that the arc on the contact surface was dispersed and the material was possessed of less are erosion in the arcing process.
Keywordhigh energy ball milling nanocomposite electrical contact material arc erosion
Indexed BySCI
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000225582400023
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Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorWang, JB
Affiliation1.Xian Jiaotong Univ, Natl Lab Mat Strength, Xian 710049, Peoples R China
2.Xian Inst Sci & Technol, Xian 710048, Peoples R China
3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Wang, JB,Li, YM,Wang, YP,et al. Study of nanocomposite silver-based contact materials[J]. RARE METAL MATERIALS AND ENGINEERING,2004,33(11):1213-1217.
APA Wang, JB,Li, YM,Wang, YP,&Din, BJ.(2004).Study of nanocomposite silver-based contact materials.RARE METAL MATERIALS AND ENGINEERING,33(11),1213-1217.
MLA Wang, JB,et al."Study of nanocomposite silver-based contact materials".RARE METAL MATERIALS AND ENGINEERING 33.11(2004):1213-1217.
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