本专利属于粉末冶金技术领域，设计到一种高致密度钼材料的低温活化烧结制备方法，按Mo-x%Ni(x=01-1，质量分数)称取仲钼酸氨和六水硝酸镍，加入去离子水配制混合溶液作为前驱体溶液，采用喷雾干燥的方法制备前驱体粉末;将前驱体粉末在马弗炉中煅烧:通过管式炉进行两步氢还原:将还原后的粉末进行高能球磨，转速为350rpm+6rpm，球料比101，球磨5h，得到平均颗粒尺寸为190nm的粉末;将获得的粉末进行模压，采用高温钨网氢气炉最高温度1400℃-1750℃下烧结60min:本发明所提供的制备方法烧结温度低、烧结时间短、高效节能、所得产物致密度高、晶粒尺寸较细小均匀、杂质少。

This patent belongs to the technical field of powder metallurgy. It designs a low-temperature activation sintering preparation method for high-density molybdenum materials. Weigh out ammonium paramolybdate and hexahydrate nitric acid according to Mo-x%Ni (x=01-1, mass fraction) Nickel, add deionized water to prepare a mixed solution as a precursor solution, and prepare the precursor powder by spray drying; calcining the precursor powder in a muffle furnace: two-step hydrogen reduction through a tube furnace: the reduced powder Carry out high-energy ball milling with a speed of 350rpm+6rpm, a ball-to-battery ratio of 101, and a ball mill for 5h to obtain a powder with an average particle size of 190nm; the obtained powder is molded and sintered at a maximum temperature of 1400℃-1750℃ in a high-temperature tungsten mesh hydrogen furnace for 60 minutes The preparation method provided by the invention has low sintering temperature, short sintering time, high efficiency and energy saving, high density of the obtained product, fine and uniform crystal grain size, and less impurities.