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Article10.1016/0026-0657(91)90606-2

Processing and properties of silver-tin oxide-indium oxide electrical contact materials

-1991-04-01-Metal Powder Report
9

TL;DRAbstract

The dependence of the physical properties of contact materials on processing mode and microstructure is evaluated for the silver-tin oxide system. This system is a possible substitute for silver-cadmium oxide. Silver-tin oxide-indium oxide alloys of composition Ag-7.6 w\o SnO2-4.81 w\o In2O3 were prepared by casting and internal oxidation, and by a powder processing route involving rapid solidification, internal oxidation, sintering and repressing. Density, hardness and electrical conductivity data are presented and interpreted in terms of alloy microstructure.

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The dependence of the physical properties of contact materials on processing mode and microstructure is evaluated for the silver-tin oxide system. This system is a possible substitute for silver-cadmium oxide. Silver-tin oxide-indium oxide alloys of composition Ag-7.6 w\o SnO2-4.81 w\o In2O3 were prepared by casting and internal oxidation, and by a powder processing route involving rapid solidification, internal oxidation, sintering and repressing. Density, hardness and electrical conductivity data are presented and interpreted in terms of alloy microstructure.

Keywords

Materials scienceIndium tin oxideElectrical contactsIndiumOxideTinMetallurgyComposite material

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