Boron carbide-silicon carbide complex ceramic and preparation method thereof
A technology of boron carbide silicon carbide and multiphase ceramics, which is applied in the field of ceramic materials, can solve problems such as poor wettability of aluminum melt, hindered development, and difficult solutions, and achieve excellent mechanical properties, increase strength and toughness, and good infiltration sexual effect
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Embodiment 1
[0052] The raw materials of the prefabricated body are as follows (by weight percentage):
[0053] Boron carbide powder with a particle size of 50-100 microns 75% Boron carbide powder with a particle size of 2-10 microns 15%
[0054] Graphite powder 3.0% Activated carbon powder 4.0%
[0055] Phenolic resin 1.5% Tetramethylammonium hydroxide 0.5%
[0056] Motor oil 0.3% glycerin 0.7%;
[0057] The weight percent of the above-mentioned boron carbide powder is based on pure boron carbide.
[0058] Alloy composition: 80% silicon, 20% aluminum.
Embodiment 2
[0060] The raw materials of the prefabricated body are as follows (by weight percentage):
[0061] Boron carbide powder with a particle size of 50-100 microns 75% Boron carbide powder with a particle size of 2-10 microns 15%
[0062] Graphite powder 3.0% Activated carbon powder 4.0%
[0063] Phenolic resin 1.5% Tetramethylammonium hydroxide 0.5%
[0064] Motor oil 0.3% glycerin 0.7%;
[0065] The weight percent of the above-mentioned boron carbide powder is based on pure boron carbide.
[0066] Alloy composition: 55% silicon, 45% aluminum.
Embodiment 3
[0068] The raw materials of the prefabricated body are as follows (by weight percentage):
[0069] Boron carbide powder with a particle size of 50-100 microns 75% Boron carbide powder with a particle size of 2-10 microns 15%
[0070] Graphite powder 3.0% Activated carbon powder 4.0%
[0071] Phenolic resin 1.5% Tetramethylammonium hydroxide 0.5%
[0072] Motor oil 0.3% glycerin 0.7%;
[0073] The weight percent of the above-mentioned boron carbide powder is based on pure boron carbide.
[0074] Alloy composition: 36% silicon, 64% aluminum.
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