Properties Enhancement of an Eco-Friendly Electrical Contact Material by Silver Nanoparticles Addition

Autor: Magdalena Lungu, Mariana Lucaci, Stefania Gavriliu, E. Enescu, Violeta Tsakiris, Gimi Rimbu
Rok vydání: 2012
Předmět:
Zdroj: Metallurgical and Materials Transactions A. 43:4464-4469
ISSN: 1543-1940
1073-5623
DOI: 10.1007/s11661-012-1424-x
Popis: Silver-tin oxide electrical contact material with 10 wt pct stannic oxide and balance nanosized and micronsized silver was developed successfully. Stannic oxide particles chemically coated by a layer of silver nanospheres are homogeneously dispersed in a silver microcrystalline matrix made by chemical synthesis. The material processed by pressing-sintering-repressing exhibited enhanced properties: density: 97.1 to 97.9 pct relative density, Vickers hardness: 103 to 115, electrical conductivity: 65 to 69 pct IACS, volumetric shrinkage: 28.9 to 30.9 pct, and a very fine and uniform microstructure.
Databáze: OpenAIRE