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

采粉末冶金法制备了微米尺寸和准纳米尺寸的氧镧强钼合金。

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

粉末冶金虽然从根本上解决了碳物偏析和粗大的问题，但其工艺复杂，成本过，受到限制。