Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silicon carbide/graphene bionic composite material for bulletproof armor and preparation method thereof
The invention relates to the field of composite materials for bulletproof armor, particularly to a silicon carbide/graphene bionic composite material for bulletproof armor, and a preparation method thereof, wherein the composite material is composed of graphene with a volume percentage of 0.3-6% and silicon carbide, and graphene lamellas are preferentially and directionally distributed in a silicon carbide matrix microscopically. The preparation method of the composite material comprises the following steps: preparing mixed slurry of graphene and silicon carbide, then carrying out freeze casting and vacuum freeze drying treatment on the slurry to obtain a porous blank with an oriented lamellar structure, then compressing the blank along the direction vertical to the lamellar structure, andfinally carrying out organic matter removal treatment and sintering densification to obtain the silicon carbide/graphene composite material. According to the invention, the composite material is highin strength, high in hardness and simple in production process, has good fracture toughness, impact toughness and repeated impact resistance, can effectively improve the protection effect and durability of the bulletproof armor, and has a considerable application prospect.
本发明涉及防弹装甲用复合材料领域，具体为一种防弹装甲用碳化硅/石墨烯仿生复合材料及其制备方法。该复合材料由体积百分数为0.3％～6％的石墨烯和碳化硅组成，微观上石墨烯片层择优定向分布在碳化硅基体中。该复合材料的制备方法为：首先配制石墨烯和碳化硅的混合浆料，再对浆料进行冷冻铸造和真空冷冻干燥处理得到具有定向片层结构的多孔坯体，然后沿垂直于片层的方向压缩坯体，最后通过去有机质处理和烧结致密化得到碳化硅/石墨烯复合材料。本发明的复合材料强度高、硬度大，生产工艺简单，并且具有良好的断裂韧性、冲击韧性和抗多次冲击的能力，可有效改善防弹装甲的防护效果和耐用性，具有可观的应用前景。
Silicon carbide/graphene bionic composite material for bulletproof armor and preparation method thereof
The invention relates to the field of composite materials for bulletproof armor, particularly to a silicon carbide/graphene bionic composite material for bulletproof armor, and a preparation method thereof, wherein the composite material is composed of graphene with a volume percentage of 0.3-6% and silicon carbide, and graphene lamellas are preferentially and directionally distributed in a silicon carbide matrix microscopically. The preparation method of the composite material comprises the following steps: preparing mixed slurry of graphene and silicon carbide, then carrying out freeze casting and vacuum freeze drying treatment on the slurry to obtain a porous blank with an oriented lamellar structure, then compressing the blank along the direction vertical to the lamellar structure, andfinally carrying out organic matter removal treatment and sintering densification to obtain the silicon carbide/graphene composite material. According to the invention, the composite material is highin strength, high in hardness and simple in production process, has good fracture toughness, impact toughness and repeated impact resistance, can effectively improve the protection effect and durability of the bulletproof armor, and has a considerable application prospect.
本发明涉及防弹装甲用复合材料领域，具体为一种防弹装甲用碳化硅/石墨烯仿生复合材料及其制备方法。该复合材料由体积百分数为0.3％～6％的石墨烯和碳化硅组成，微观上石墨烯片层择优定向分布在碳化硅基体中。该复合材料的制备方法为：首先配制石墨烯和碳化硅的混合浆料，再对浆料进行冷冻铸造和真空冷冻干燥处理得到具有定向片层结构的多孔坯体，然后沿垂直于片层的方向压缩坯体，最后通过去有机质处理和烧结致密化得到碳化硅/石墨烯复合材料。本发明的复合材料强度高、硬度大，生产工艺简单，并且具有良好的断裂韧性、冲击韧性和抗多次冲击的能力，可有效改善防弹装甲的防护效果和耐用性，具有可观的应用前景。
Silicon carbide/graphene bionic composite material for bulletproof armor and preparation method thereof
防弹装甲用碳化硅／石墨烯仿生复合材料及其制备方法
LIU ZENGQIAN (Autor:in) / ZHANG LILONG (Autor:in) / ZHANG YINING (Autor:in) / ZHANG JIAN (Autor:in) / ZHANG ZHEFENG (Autor:in)
27.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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