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Boron carbide-graphene micro-laminated composite material and preparation method thereof
The invention discloses a preparation method of a boron carbide/graphene micro-laminated composite material. The boron carbide/graphene micro-laminated composite material provided by the invention comprises boron carbide (B4C) layers and boron carbide-graphene layers, wherein the boron carbide (B4C) layers and the boron carbide-graphene layers are alternately arranged, the boron carbide-graphene layers are B4C layers doped with reduced graphene oxide, doped graphene oxide is reduced into rGO through heat treatment, the rGO is introduced, and the doping amount of the rGO is 0.5-10 wt%. According to the invention, the compact boron carbide/graphene micro-laminated composite material is obtained by preparing a pure B4C and rGO enhanced B4C alternating micro-laminated structure and carrying out SPS sintering. Compared with pure B4C ceramic, the boron carbide/graphene micro-laminated composite material prepared by adopting the method has the advantages that fracture toughness can be improved while the high hardness is maintained. The boron carbide/graphene micro-laminated composite material provided by the invention is compact in structure and has an obvious laminated structure, B4C andB4C-graphene layers are uniformly distributed, and the fracture toughness can be improved while high hardness and high strength are maintained.
本发明公开了一种碳化硼/石墨烯微叠层复合材料的制备方法。本发明提供一种碳化硼/石墨烯微叠层复合材料，包括交替排布的碳化硼(BC)层和碳化硼‑石墨烯层，其中，所述的碳化硼‑石墨烯层为掺杂有还原氧化石墨烯的BC层，通过掺杂氧化石墨烯经热处理还原成rGO引入，rGO的掺量为0.5‑10wt％。其通过制备纯BC和rGO增强的BC交替的微叠层结构，经SPS烧结获得致密的碳化硼/石墨烯微叠层复合材料。与纯BC陶瓷相比，采用该工艺制备的碳化硼/石墨烯微叠层复合材料在保持高硬度的同时可以提高断裂韧性。本发明提供的碳化硼/石墨烯微叠层复合材料结构致密，具有明显层状结构，BC和BC‑石墨烯层分布均匀，在保持高硬度和高强度的同时，可以提高断裂韧性。
Boron carbide-graphene micro-laminated composite material and preparation method thereof
The invention discloses a preparation method of a boron carbide/graphene micro-laminated composite material. The boron carbide/graphene micro-laminated composite material provided by the invention comprises boron carbide (B4C) layers and boron carbide-graphene layers, wherein the boron carbide (B4C) layers and the boron carbide-graphene layers are alternately arranged, the boron carbide-graphene layers are B4C layers doped with reduced graphene oxide, doped graphene oxide is reduced into rGO through heat treatment, the rGO is introduced, and the doping amount of the rGO is 0.5-10 wt%. According to the invention, the compact boron carbide/graphene micro-laminated composite material is obtained by preparing a pure B4C and rGO enhanced B4C alternating micro-laminated structure and carrying out SPS sintering. Compared with pure B4C ceramic, the boron carbide/graphene micro-laminated composite material prepared by adopting the method has the advantages that fracture toughness can be improved while the high hardness is maintained. The boron carbide/graphene micro-laminated composite material provided by the invention is compact in structure and has an obvious laminated structure, B4C andB4C-graphene layers are uniformly distributed, and the fracture toughness can be improved while high hardness and high strength are maintained.
本发明公开了一种碳化硼/石墨烯微叠层复合材料的制备方法。本发明提供一种碳化硼/石墨烯微叠层复合材料，包括交替排布的碳化硼(BC)层和碳化硼‑石墨烯层，其中，所述的碳化硼‑石墨烯层为掺杂有还原氧化石墨烯的BC层，通过掺杂氧化石墨烯经热处理还原成rGO引入，rGO的掺量为0.5‑10wt％。其通过制备纯BC和rGO增强的BC交替的微叠层结构，经SPS烧结获得致密的碳化硼/石墨烯微叠层复合材料。与纯BC陶瓷相比，采用该工艺制备的碳化硼/石墨烯微叠层复合材料在保持高硬度的同时可以提高断裂韧性。本发明提供的碳化硼/石墨烯微叠层复合材料结构致密，具有明显层状结构，BC和BC‑石墨烯层分布均匀，在保持高硬度和高强度的同时，可以提高断裂韧性。
Boron carbide-graphene micro-laminated composite material and preparation method thereof
一种碳化硼-石墨烯微叠层复合材料及其制备方法
ZHANG FAN (author) / GAO LI (author) / GONG YUCHENG (author) / REN LIN (author) / ZHAO TIANHAO (author)
2020-08-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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