采用传统的氢气烧结粉末冶金法制备钼镧合金，按质量百分比在钼粉中加入1 % La₂O₃后，经混料机混合均匀，进行2ｔ等静压压制，保压2 min，再进行1800 ℃氢气烧结，观察其金相组织。将坯料置于1450 ℃炉中保温15 min后进行轧制，随后逐步降温以控制晶粒长大。将锻造钼棒沿轴向切开，经磨削、抛光、腐蚀（腐蚀液组分为2.3 g NaOH + 2.6 g K₃[Fe(CN)₆] + 20 mL H₂O），在Leica DM2500p光学显微镜低倍镜下观察。

The molybdenum-lanthanum alloy was prepared by the conventional hydrogen sintering powder metallurgy method. After adding 1 % La₂O₃ to the molybdenum powder according to the mass percentage, the alloy was mixed well by a blender, isostatically pressed at 2t, held for 2 min, and then hydrogen sintered at 1800 ℃ to observe its metallographic organization. The billets were rolled after being held in a furnace at 1450 ℃ for 15 min, followed by gradual temperature reduction to control grain growth. The forged molybdenum rods were cut along the axial direction, ground, polished and etched (the etching solution component was 2.3 g NaOH + 2.6 g K₃[Fe(CN)₆] + 20 mL H₂O), and observed under a Leica DM2500p optical microscope at low magnification.