| 摘要 |
An aggregate and/or integrate comprising of silver and tin oxides and/or tin alloy oxides of 4-25 weight % which have been prepared to have the oxides disperse uniformly in the silver, are subjected to a temperature about the melting point of silver, whereby an electrical contact material made from said aggregate and/or integrate comes to have a continuous silver matrix as if produced by an internal oxidation method and also to have such uniform dispersion of the metal oxides in said silver matrix which is comparable or superior to that producible by a powder metallurgical method. The contact material has an excellent elongation and high conductivity.
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