Author/Authors :
Jianjun، نويسنده , , Huang and Fan، نويسنده , , Wang Li-Ying، نويسنده , , Liu and Shishou، نويسنده , , Jiang and Xisheng، نويسنده , , Kai Wang and Bing Deng، نويسنده , , Qi and Liang، نويسنده , , Gao، نويسنده ,
Abstract :
Tungsten (W) coatings were fabricated on copper (Cu) by high-speed atmospheric plasma spray (HAPS) technique. The properties of the porosity, oxygen content, bonding strength and microhardness were measured. The results obtained indicated that the HAPS-W coating showed good properties particularly in terms of porosity and oxygen content. The porosity of the HAPS-W coating was 2.3% and the distribution of pore size diameter was mainly concentrated in the range of 0.01–1 μm. The oxygen content of the coating measured by means of Nitrogen/Oxygen Determinator was about 0.10 wt.%. These initial results suggest that the HAPS-W coating has achieved the reported properties of the vacuum plasma spray (VPS) W coating. Compared with VPS, HAPS-W technique could provide a convenient and low cost way to obtain adequate W coatings for fusion applications.
