在Mo粉中添加1.0%纳米SiC,通过行星式球磨机混料使其分布均匀,球磨机转速为350 r/min,然后压制成型后在1600℃的氢气气氛炉中烧结,采用HVS-1000型显微硬度计,在测试前将试样磨平并抛光,并保证样品上下表面平行,所有的测试压力为1.0 kg,保压时间为10 s,选择试样平整面测硬度,密度测试采用的仪器为MZ-Q300型高精度粉末冶金比重仪,通过阿基米德排水法原理可推出烧结体的实际密度和相对密度。
Add 1.0% nano-SiC to Mo powder, mix it by planetary ball mill to make it evenly distributed, the ball mill speed is 350 r/min, then press and shape it and sinter it in hydrogen atmosphere furnace at 1600℃, adopt HVS-1000 micro hardness tester, grind and polish the specimen before the test, and ensure the top and bottom surface of the sample is parallel, all the test pressure is 1.0 kg, holding pressure All the test pressure is 1.0 kg, holding time is 10 s. The flat surface of the specimen is selected to measure the hardness, and the instrument used for density test is MZ-Q300 type high-precision powder metallurgy specific gravity meter, and the actual density and relative density of the sintered body can be introduced through the principle of Archimedes' drainage method.