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High-hardness ultralight ceramic composite material and preparation method thereof
The invention discloses a high-hardness ultralight ceramic composite material and a preparation method thereof, which belongs to the technical field of ceramic composite material preparation. The preparation method of the high-hardness ultralight ceramic composite material comprises the following steps: S1, weighing boron carbide powder, titanium-coated carbon nanotubes and silicon-coated carbon nanotubes; S2, mixing and sanding the boron carbide powder and a dispersion medium until the particle size D50 of the slurry is less than or equal to 1[mu]m to obtain boron carbide slurry; S3, performing ball-milling on the boron carbide slurry, the titanium-coated carbon nanotubes and the silicon-coated carbon nanotubes together to obtain uniform mixed slurry; S4, carrying out spray granulation onthe mixed slurry, and then crushing and sieving to obtain mixed powder; and S5, transferring the mixed powder into a graphite mold, separating the mixed powder from the graphite mold and a pressure head by using graphite paper, and carrying out hot pressed sintering to obtain the high-hardness ultra-light ceramic composite material. The boron carbide, titanium-coated carbon nanotubes and silicon-coated carbon nanotubes are used as raw materials, and titanium boride and silicon carbide are generated through an in-situ reaction, so that the hardness of the base material is improved, and the reinforcing and toughening effects are achieved.
一种高硬超轻陶瓷复合材料及其制备方法，属于陶瓷复合材料制备技术领域。该高硬超轻陶瓷复合材料的制备方法包括以下步骤：S1，称取碳化硼粉体、覆钛碳纳米管和覆硅碳纳米管；S2，将碳化硼粉体和分散介质混合砂磨至浆料粒径D50≤1μm，得到碳化硼浆料；S3，将碳化硼浆料、覆钛碳纳米管及覆硅碳纳米管一起球磨，得到均匀的混合浆料；S4，将混合浆料喷雾造粒，再粉碎过筛，得到混合粉体；S5，将混合粉体转移至石墨模具中，混合粉体与石墨模具、压头之间用石墨纸隔开，热压烧结制得高硬超轻陶瓷复合材料。本发明以碳化硼、覆钛碳纳米管和覆硅碳纳米管为原料，通过原位反应生成硼化钛和碳化硅，既提高了基体材料的硬度，又起到了增强补韧的作用。
High-hardness ultralight ceramic composite material and preparation method thereof
The invention discloses a high-hardness ultralight ceramic composite material and a preparation method thereof, which belongs to the technical field of ceramic composite material preparation. The preparation method of the high-hardness ultralight ceramic composite material comprises the following steps: S1, weighing boron carbide powder, titanium-coated carbon nanotubes and silicon-coated carbon nanotubes; S2, mixing and sanding the boron carbide powder and a dispersion medium until the particle size D50 of the slurry is less than or equal to 1[mu]m to obtain boron carbide slurry; S3, performing ball-milling on the boron carbide slurry, the titanium-coated carbon nanotubes and the silicon-coated carbon nanotubes together to obtain uniform mixed slurry; S4, carrying out spray granulation onthe mixed slurry, and then crushing and sieving to obtain mixed powder; and S5, transferring the mixed powder into a graphite mold, separating the mixed powder from the graphite mold and a pressure head by using graphite paper, and carrying out hot pressed sintering to obtain the high-hardness ultra-light ceramic composite material. The boron carbide, titanium-coated carbon nanotubes and silicon-coated carbon nanotubes are used as raw materials, and titanium boride and silicon carbide are generated through an in-situ reaction, so that the hardness of the base material is improved, and the reinforcing and toughening effects are achieved.
一种高硬超轻陶瓷复合材料及其制备方法，属于陶瓷复合材料制备技术领域。该高硬超轻陶瓷复合材料的制备方法包括以下步骤：S1，称取碳化硼粉体、覆钛碳纳米管和覆硅碳纳米管；S2，将碳化硼粉体和分散介质混合砂磨至浆料粒径D50≤1μm，得到碳化硼浆料；S3，将碳化硼浆料、覆钛碳纳米管及覆硅碳纳米管一起球磨，得到均匀的混合浆料；S4，将混合浆料喷雾造粒，再粉碎过筛，得到混合粉体；S5，将混合粉体转移至石墨模具中，混合粉体与石墨模具、压头之间用石墨纸隔开，热压烧结制得高硬超轻陶瓷复合材料。本发明以碳化硼、覆钛碳纳米管和覆硅碳纳米管为原料，通过原位反应生成硼化钛和碳化硅，既提高了基体材料的硬度，又起到了增强补韧的作用。
High-hardness ultralight ceramic composite material and preparation method thereof
高硬超轻陶瓷复合材料及其制备方法
WANG JIN'E (author) / DONG MING (author)
2020-04-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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