| 摘要 |
PROBLEM TO BE SOLVED: To improve the compsn. of grindable coating to be subjected to a substrate in a gas turbine engine. SOLUTION: The grindable coating is formed by plasma-spraying a top coat on a bond coat medium. The grindable coating contains 11 to 14 wt.% yttria, and the balance substantial zirconia. By this compsn., the corrosion resistance of the coating can be improved, and further, its thermal conductivity is made low, and by using this coating, the efficiency of the engine and its ductility can be improved. |
