Electron-beam welding of ceramics with metal by using fore-vacuum plasma electron source
Results of creation of ceramic-metal connections by a electron-beam welding are presented. Welding of alumina oxide ceramics with aluminum and titan were carried out in fore-vacuum pressure range (5 - 20 Pa) with use of a plasma electron source. Results of composition and structure measurements of transitive layer ceramics-metal are presented. It is shown, that the thickness of a transitive layer essentially exceeds the size of micro-roughnesses of initial ceramics that confirms presence of materials hashing, i.e. welding. Dependence of break mechanical strength for prepared connections on electron beam power is measured. Sharp distinction of strength from a metal choice is established. Strength of welded connection for ceramics-aluminum 10 times exceeds the same value for system ceramics-titan.