A method for improving the elastic modulus of particle reinforced aluminum matrix composites
A particle-reinforced aluminum and composite material technology, which is applied in the field of metal matrix composite materials, can solve the problems of porous ceramic particle-reinforced matrix composites with poor elastic modulus conductivity, and achieve good interface bonding, high elastic modulus, and good conductivity. Effect
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Embodiment 1
[0045] Step 1, select irregular alumina (Al 2 o 3 ) granules, alumina granules and industrial pure water were added into the circulating stirring ball mill according to the mass ratio of 1:5 and evenly stirred and mixed to obtain a mixture of alumina granules and industrial pure water; The aqueous solution of propylene alcohol is used as the binder and the mixture is uniformly stirred and dispersed to obtain the alumina particle slurry;
[0046] Step 2, adding the alumina particle slurry to a pressure spray dryer and atomizing it into micro-droplets, forming spherical agglomerated particles under the action of surface tension of the micro-droplets, wherein the binder volatilizes, and obtaining dry spherical porous alumina particles; Put the dry spherical porous alumina particles into a roasting furnace for roasting, the roasting temperature is 380°C, and the roasting time is 1h, remove the residual moisture and binder inside the spherical porous alumina particles, and use a s...
Embodiment 2
[0054] Step 1: Select irregular aluminum nitride particles with a particle size of 1-10 μm, aluminum nitride (AlN) particles and industrial pure water at a mass ratio of 1:5 and add them into a circulating stirring ball mill for uniform stirring and mixing to obtain aluminum nitride particles Mixed material with industrial pure water; 1% by mass percentage of polypropylene alcohol aqueous solution with a concentration of 7% is used as a binder to uniformly stir and disperse the mixed material to obtain aluminum nitride particle slurry;
[0055] Step 2, adding the aluminum nitride particle slurry to the pressure spray dryer and atomizing it into micro-droplets, the micro-droplets form spherical agglomerated particles under the action of surface tension, and the binder volatilizes to obtain dry spherical porous aluminum nitride particles ;Put the dry spherical porous aluminum nitride particles into a roasting furnace for roasting, the roasting temperature is 380°C, and the roasti...
Embodiment 3
[0062] Step 1: Select irregular silicon carbide (SiC) particles with a particle size of 1-10 μm and industrial pure water according to the mass ratio of 1:5 and add them into the circulating stirring ball mill for uniform stirring and mixing to obtain a mixture of silicon carbide particles and industrial pure water ; Using 1% by mass percentage of polypropylene alcohol aqueous solution with a concentration of 7% as a binder and mixing material to uniformly stir and disperse to obtain a silicon carbide particle slurry;
[0063] Step 2, adding the silicon carbide particle slurry into a pressure spray dryer and atomizing it into micro-droplets, the micro-droplets form spherical agglomerated particles under the action of surface tension, wherein the binder volatilizes to obtain dry spherical porous silicon carbide particles; The dried spherical porous silicon carbide particles are put into a roasting furnace for roasting, the roasting temperature is 380°C, and the roasting time is ...
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