Y. Hou
2012
Citations
0
Influential Citations
2
Citations
Journal
Thermal Spray Technology
Abstract
Cobalt coated tungsten carbide powder is one of the mostly studied spraying composite materials, widely used in aerospace, aviation, metallurgy and the special circumstances. In this paper, high quality WC/Co is prepared by the hydrometallurgical process using high pressurized hydrogen reduction method. The effects of the process parameters to the quality of the powder, such as catalyst, the test temperature, ammonium sulphate, ammonia and oxygen partial pressure, etc., are investigated in detail. All the observations suggest the initial sensitization and activation treatment is very important, and the optimal parameters of spherical WC/Co powders are obtained.