POROUS POWDER - FIBER MATERIALS BASED ON COPPER

A theoretical and experimental investigation of porous powder-fiber ma terials bared on copper powder and fibers with a layered distribution of components was carried out. Maximum and average pore sizes, permeab ility coefficients, and efficiency parameters as functions of pressing pressure, powder particle size, and relative thickness of the fiber l ayer were investigated. It was shown that the use of components with c ertain dimensions permits the fabrication of materials with a high por e size gradient (up to 12 times) in a thickness of material that consi derably increases the efficiency parameter E relative to that in porou s powder and porous fiber materials.