L. L. Bourguignon, D. P. Agarwal, R. German, S. Farooq, S. Lin
{"title":"Powder metallurgy fabrication of palladium contact alloys","authors":"L. L. Bourguignon, D. P. Agarwal, R. German, S. Farooq, S. Lin","doi":"10.1109/HOLM.1988.16127","DOIUrl":null,"url":null,"abstract":"The authors have combined some novel processing approaches to synthesize a high-performance material using powder metallurgy. A basic Pd-Ag-Cu composition was modified with metalloid additions to attain a fine grain size in combination with rapid solidification techniques. The internal grain structure was ideal for supersolidus sintering, having a dendritic arm spacing on the order of 1 mu m. The result is a fully dense alloy with attractive properties for electrical contact applications, including good conductivity, strength, wear, and corrosion resistance, comparable to or better than traditionally formed palladium-gold-silver-copper alloys. The addition of metalloids to the basic ternary system optimizes properties such as hardness and aids sinterability; yet the alloy can be fabricated without additional expense.<<ETX>>","PeriodicalId":191800,"journal":{"name":"Electrical Contacts, 1988., Proceedings of the Thirty Fourth Meeting of the IEEE Holm Conference on Electrical Contacts","volume":"28 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrical Contacts, 1988., Proceedings of the Thirty Fourth Meeting of the IEEE Holm Conference on Electrical Contacts","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HOLM.1988.16127","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The authors have combined some novel processing approaches to synthesize a high-performance material using powder metallurgy. A basic Pd-Ag-Cu composition was modified with metalloid additions to attain a fine grain size in combination with rapid solidification techniques. The internal grain structure was ideal for supersolidus sintering, having a dendritic arm spacing on the order of 1 mu m. The result is a fully dense alloy with attractive properties for electrical contact applications, including good conductivity, strength, wear, and corrosion resistance, comparable to or better than traditionally formed palladium-gold-silver-copper alloys. The addition of metalloids to the basic ternary system optimizes properties such as hardness and aids sinterability; yet the alloy can be fabricated without additional expense.<>
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