利用等离子体喷涂技术在铜基体上制备1 mm厚的钨涂层,并分析了不同喷涂功率及Ar/H2条件对涂层微观形貌、气孔率、热导率、表面粗糙度及成分等的影响。结果显示,喷涂功率对涂层性能影响较大,Ar/H2比值大小也会影响钨粒子飞行速度和粒子熔化状态,进而影响涂层性能。在功率大于40 k W、Ar/H2=35/15时钨粒子熔化状态较好,涂层表面粗糙度较小,涂层气孔率较小,传热性能较好。 A 1 mm thick tungsten coating was prepared on a copper substrate by plasma spray technique. The effects of spraying power and Ar / H2 on the microstructure, porosity, thermal conductivity, surface roughness and composition of the coating influences. The results show that the spraying power has great influence on the coating performance. The Ar / H2 ratio also affects the flying speed of tungsten particles and the particle melting state, which will affect the coating performance. When the power is greater than 40 k W and Ar / H2 = 35/15, the tungsten particles melt well, the coating surface roughness is smaller, the coating porosity is smaller, and the heat transfer performance is better.