Preparation method of SiC continuous fiber reinforced titanium-based composite, and product
A titanium-based composite material and continuous fiber technology, which is applied in the field of preparation of SiC continuous fiber reinforced titanium-based composite materials, can solve the problems of low braiding and limited reinforcement effect, and achieve strong braiding, improved mechanical properties at room temperature, Enhance the effect of good effect
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Embodiment 1
[0025] The SiC continuous fiber with an average diameter of 10um is placed in an air environment and heat-treated at 500°C, and then the heat-treated continuous SiC fiber is used as the base material. 2 O 3 It is the target material for magnetron sputtering. The process parameters of magnetron sputtering are: working temperature 270℃, sputtering gas is O 2 , Ar mixed gas, oxygen-argon ratio is 0.4, working pressure is 0.7Pa, Al 2 O 3 The target sputtering power is 1500W, and the deposition time is 60min; after the magnetron sputtering, Al is obtained 2 O 3 The average coating thickness is 300nm, the fiber volume fraction is 40% containing Al 2 O 3 Coated SiC continuous fiber. figure 1 Is the micro-topography of SiC continuous fiber, which is represented by figure 1 It can be seen that the surface of the SiC continuous fiber is smooth, and the average fiber diameter is 10um. figure 2 To contain Al 2 O 3 Coated SiC continuous fiber, as can be seen from the figure, there is an obvio...
Embodiment 2
[0035] The SiC continuous fiber with an average diameter of 12um was placed in an air environment and heat-treated at 400°C. Then the heat-treated continuous SiC fiber was used as the base material. 2 O 3 It is a target material for magnetron sputtering. The process parameters of magnetron sputtering are: working temperature 100℃, sputtering gas is O 2 , Ar mixed gas, oxygen-argon ratio is 1.0, working pressure is 0.1Pa, Al 2 O 3 The target sputtering power is 100W, and the deposition time is 10min; after the magnetron sputtering is over, Al 2 O 3 The average coating thickness is 100nm, the fiber volume fraction is 30% containing Al 2 O 3 Coated SiC continuous fiber.
[0036] Will Al 2 O 3 The coated SiC continuous fiber is put into the mold, and then the TC4 matrix alloy is put into the crucible and smelted in the resistance furnace. After reaching the impregnation temperature of 2000 ℃, the heating device 2 O 3 The coated SiC continuous fiber preform is heated, and the control sys...
Embodiment 3
[0038] The SiC continuous fiber with an average diameter of 15um is placed in an air environment and heat-treated at 700°C, and then the heat-treated continuous SiC fiber is used as the base material. 2 O 3 It is the target material for magnetron sputtering. The process parameters of magnetron sputtering are: working temperature 500℃, sputtering gas is O 2 , Ar mixed gas, oxygen-argon ratio is 0.1, working pressure is 1.0Pa, Al 2 O 3 The target sputtering power is 5000W, and the deposition time is 200min; after the magnetron sputtering is over, Al is obtained 2 O 3 The average coating thickness is 2000nm, the fiber volume fraction is 60% containing Al 2 O 3 Coated SiC continuous fiber.
[0039] Will Al 2 O 3 The coated SiC continuous fiber is put into the mold, then the TC4 matrix alloy is put into the crucible and smelted in the resistance furnace. After reaching the infiltration temperature of 1900℃, the heating device 2 O 3 The coated SiC continuous fiber preform is heated, and t...
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