Fast in-situ repair technology-a novel SPS process for the waste refractory W-10Ti targets

Waste W-10Ti refractory target was repaired by SPS at 1500 degrees C and 5 min. The properties of the original and regenerated targets at the center and edge were systematically studied. The contents of impurities of two targets were both very low, and composed of beta Ti(W) and beta W(Ti) phases, while the contents of beta Ti(W) phase in the regenerated target were lower than that in the original target. The grain size, relative density and Vickers hardness of the regenerated target were slightly higher than those of the original target. In addition, the performances of the W-10Ti film deposited by the two targets were compared. The particles in the film deposited by the regenerated target were obviously fewer than those in the film deposited by the original target. W 4f and Ti 2p spectra demonstrate the presence of metal W, WO3 and TiO2. The roughness, particle sizes, resistance, hardness, elastic modulus and residual stress of the film deposited by the two targets were very close within the error range.

Automated summary

The waste W-10Ti refractory target was repaired using SPS at 1500 degrees C for 5 minutes. The regenerated target had slightly better properties compared to the original target, including grain size, relative density, and hardness. The film deposited by the regenerated target had significantly fewer particles compared to the film deposited by the original target.