Molybdenum-base compound material and preparation method thereof

The invention discloses a molybdenum-base composite material which includes 3 to 20 volume percent of aluminum oxide, and the rest of molybdenum and unavoidable impurities. The invention also discloses a preparation method of the molybdenum-base composite material, which is as follows: aluminum nitrate solution and molybdenum oxide are uniformly mixed, aluminum nitrate is decomposed, and molybdenum oxide is reduced to obtain the mixed powder of aluminum oxide and molybdenum to be pressed in a cooling way; the molybdenum-base composite material on which aluminum oxide granules are distributed is obtained by sintering. The prepared aluminum-oxide granule reinforcing molybdenum-base composite material has the following advantages that the recrystallizing temperature reaches about 1300 DEG C, the high-temperature anti-creepage performance is 1 to 1.5 times as that of rare-earth molybdenum alloy, the high-temperature strength and hardness are 1 to 1.5 times as those of TZM molybdenum alloy, and the high-temperature abrasion resistance is 2 to 4 times as that of the TZM molybdenum alloy. The invention has simple technology and can prepare the composite material by the normal technology of producing the molybdenum alloy by powder metallurgy, thus, the invention has wide application prospect and popularizing value.