粉末冶金

The molybdenum alloy reinforced by lanthana particles with the sizes of nanometer and micron was prepared by powder metallurgy.

采用粉末冶法制备了微米尺寸和准纳米尺寸的氧镧粒子增强。

Although PM has solved the problem of carbide segregation and crassitude fundamentally, it has complicated technics and extortionate cost, so restricts its application.

粉末冶虽然从根上解决了碳物偏析和粗大的问题，但其工艺复，过高，应用受到限制。