Method for preparing biphase cooperative strengthening TiAl base composite material
A composite material and mixed material technology, applied in the field of material science, can solve the problem of high synthesis temperature, and achieve the effects of low synthesis temperature, high performance and wide application
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Embodiment 1
[0014] Example 1, at first, the Ti powder with a purity of 99.3% through a 280 mesh sieve, the Al powder with a purity of 99.5% through a 200 mesh sieve and the CuO powder with a particle size of 0.5 μm and a purity of 99.0% are charged In the corundum ball milling tank, the atomic ratio of Ti to Al is 1:1.2, the amount of CuO introduced is 8% of the mass of the mixture of Ti powder and Al powder, and absolute ethanol is used as the ball milling medium, and the volume ratio of the mixture to absolute ethanol is 1: 1; add corundum ball stones as the grinding medium, and the mass ratio of the mixture to the grinding medium is 1:3; secondly, mill the corundum ball mill tank containing the above mixture on a planetary ball mill at a speed of 750r / min, and the milling time is 1.5h, the ball-milled powder is dried at 40°C; finally, the dried powder is sieved through a 40-80 mesh screen, put into a graphite mold for hot-press sintering, and the vacuum degree is less than 10 -3 Pa, th...
Embodiment 2
[0015] Example 2, at first, the Ti powder with a purity of 99.3% through a 280 mesh sieve, the Al powder with a purity of 99.5% through a 200 mesh sieve and the CuO powder with a particle size of 0.5 μm and a purity of 99.0% are charged In the corundum ball milling tank, wherein the atomic ratio of Ti to Al is 1:1.5, the amount of CuO introduced is 10% of the mass of the mixture of Ti powder and Al powder, and absolute ethanol is used as the ball milling medium, and the volume ratio of the mixture to absolute ethanol is 1: 1. Add corundum balls as the grinding medium, and the mass ratio of the mixture to the grinding medium is 1:3; secondly, mill the corundum ball mill tank containing the above mixture on a planetary ball mill with a speed of 650r / min, and the milling time is 2h, the ball-milled powder is dried at 60°C; finally, the dried powder is sieved through a 40-80 mesh screen, put into a graphite mold for hot-press sintering, and the vacuum degree is less than 10 -3 Pa,...
Embodiment 3
[0016] Embodiment 3, at first, the Ti powder that the purity of 99.3% is passed through the 280 mesh sieve, the Al powder that is 99.5% the purity of the 200 mesh sieve and the CuO powder that the particle size is 0.5 μ m and the purity is 99.0% are loaded into In the corundum ball milling tank, the atomic ratio of Ti to Al is 1:2, the amount of CuO introduced is 14% of the mass of the mixture of Ti powder and Al powder, absolute ethanol is used as the ball milling medium, and the volume ratio of the mixture to absolute ethanol is 1: 1; Add corundum ball stones as the grinding medium, and the mass ratio of the mixture to the grinding medium is 1:3; secondly, mill the corundum ball mill tank containing the above mixture on a planetary ball mill at a speed of 800r / min, and the milling time is 1h, the ball-milled powder is dried at 50°C; finally, the dried powder is sieved through a 40-80 mesh screen, put into a graphite mold for hot-press sintering, and the vacuum degree is less ...
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