lanthana

1.The toughening mechanism in the lanthana doped molybdenum alloy mainly includes fine grain toughening and particle toughening.

稀土氧镧掺杂钼合金中的主机制为：细晶增和颗粒增。

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

采用粉末冶金法制备微米尺寸和准纳米尺寸的氧镧粒子增强钼合金。