Patent ID: 9689067
Date: 2017-06-27
CPC Classifications: B22F,C22C,C23C

Claim:
1. A method for producing a molybdenum target, comprising preparing mixed powder by mixing molybdenum powder A and a molybdenum powder B, wherein the molybdenum powder A is obtained by reducing and then disintegrating molybdenum oxide so as to adjust the average particle diameter of the molybdenum powder A to be 2 to 15 μm and adjust the amount of oxygen in the molybdenum powder A to be 100 to 900 ppm by mass, and the molybdenum powder B is obtained by crushing a molybdenum bulk body having a density of not less than 6.64×10 packing the mixed powder in a pressure vessel and then vacuum-degassing the mixed powder while heating the mixed powder; and pressure-sintering the mixed powder under the condition that a sintering temperature is 1000° C. to 1800° C., a pressure is 10 to 200 MPa and a time is 1 to 10 hours so that the amount of oxygen in a molybdenum sintered body is not more than 300 ppm by mass.