Producing anisotropic composites by diffusion bonding

An important feature of the technological and physicochemical properties of the composite material (CM) is the possibility of varying thermal conductivity over a wide range, i.e. it is necessary to produce an anisotropic material, and anisotropy must be regulated. This determines the selection of components of the material. The base of the CM is represented by aluminium, whose high thermal conductivity is well known. High dielectric properties and the capacity to produce hermetic steels enable glasses (multicomponent oxide systems) to be used as a binding composition-interlayer in the CM. The processes of physicochemical interaction taking place when diffusion bonding the laminated aluminium multicomponent oxide system PbO-B sub 2 O sub 3 -ZnO-SiO sub 2 -CuO-Bi sub 2 O sub 3 are complicated and are of various types.