The present invention relates to a method of joining materials by a diffusion method using a silver / germanium alloy and a silver / germanium alloy used therefor.

摘要

A method of joining two elements using a silver-based alloy having a germanium component, said method comprising the steps of: providing two elements to be joined, said element being made of a silver-based alloy having at least one of the two elements as a germanium component; Positioning two elements adjacent one another so that a portion of the free surface of the silver-based alloy contacts a portion of the free surface of the other element without interposing a fugitive material between the two free faces; And heating the two free sides of the two elements adjacent to each other to a temperature lower than the melting point of any constituent material of the element to bond the two elements by a diffusion method. A silver / germanium alloy suitable for use in the present process has 92.5% by weight of silver and 0.4 to 7% by weight of germanium, the alloy containing boron at a concentration of less than 20,000 parts per million as a grain refining agent.