Functions of interlayers based on ultradisperse metal powders at diffusion bonding of heterogeneous materials

The features of the formation of compounds produced by means of diffusion bonding using intermediate layers based on ultradisperse nickel powder and binary mixtures made of Ni + Cu, Ni + Co, Cu + Co ultradisperse powders, have been considered. It has been demonstrated that application of such layers provides obtaining of welded joints with guaranteed quality within the temperature range of 300–350 °C and at pressures 10-20 MPa lower than those applied in the conditions of bonding without inter layers. (paper)