摘要：An orthogonal experiment scheme was designed to investigate the effects of the Cu co.tent,co.paction pressure,and sintering temperature on the microstructures and mechanical and thermal properties of(30−50)wt.%Cu/Invar bi-metal matrix co.posites fabricated via spark plasma sintering(SPS).The results indicated that as the Cu co.tent increased from 30 to 50 wt.%,a co.tinuous Cu network gradually appeared,and the density,thermal co.ductivity(TC)and co.fficient of thermal expansion of the co.posites noticeably increased,but the tensile strength *** increase in the sintering temperature promoted the Cu/Invar interface diffusion,leading to a reduction in the TC but an enhancement in the tensile strength of the *** co.paction pressure co.prehensively affected the thermal properties of the *** 50wt.%Cu/Invar co.posite sintered at 700℃ and 60 MPa had the highest TC(90.7 W/(m·K)),which was significantly higher than the TCs obtained for most of the previously reported Cu/Invar co.posites.