Properties of W/Cu FGMs containing 1%TiC or 1%La2O3 prepared using GSUHP

W/Cu functionally gradient materials (FGMs) containing 1%La2O3 and 1%TiC were prepared using graded sintering under ultra-high pressure (GSUHP). The specimens have been found to exhibit low porosity (11.57% and 11.35%, respectively). Shearing strength of the specimens between layers is good. Moreover, the specimens have still demonstrated good performance in testing thermal-shock resistance. When power density of laser is 200MWm−2, the specimens have been tested for thermal-shock resistance (1000 times); the specimens that contained 1%La2O3 were not subjected to damage, whereas those that contained 1%TiC began to crack. Finally. effect of additives on thermal-shock resistance was also preliminarily discussed.