典型文献
Mechanical Properties of Boron Carbide/Reduced-graphene-oxide Composites Ceramics
文献摘要:
Reduced graphene oxide (rGO) enhanced B4C ceramics was prepared by SPS sintering, the enhancement effect of rGO on the microstructure and mechanical properties of composites was studied through experiments and numerical simulation. The results show that the composite with 2wt% rGO has the best comprehensive mechanical properties. Compared with pure boron carbide, vickers hardness and bending strength are increased by 4.8% and 21.96%, respectively. The fracture toughness is improved by 25.71%. The microstructure observation shows that the improvement of mechanical properties is mainly attributed to the pull- out and bridge mechanism of rGO and the crack deflection. Based on the cohesive force finite element method, the dynamic crack growth process of composites was simulated. The energy dissipation of B4C/rGO multiphase ceramics during crack propagation was calculated and compared with that of pure boron carbide ceramics. The results show that the fracture energy dissipation can be effectively increased by adding graphene.
文献关键词:
中图分类号:
作者姓名:
LIAO Xusheng;GAO Li;WANG Xin;ZHANG Fan;LIU Lisheng;REN Lin
作者机构:
School of Science,Wuhan University of Technology,Wuhan 430070,China;State Key Laboratory of Advanced for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China
文献出处:
引用格式:
[1]LIAO Xusheng;GAO Li;WANG Xin;ZHANG Fan;LIU Lisheng;REN Lin-.Mechanical Properties of Boron Carbide/Reduced-graphene-oxide Composites Ceramics)[J].武汉理工大学学报(材料科学版)(英文版),2022(06):1087-1095
A类:
vickers
B类:
Mechanical,Properties,Boron,Carbide,Reduced,graphene,oxide,Composites,Ceramics,rGO,enhanced,B4C,ceramics,was,prepared,by,SPS,sintering,enhancement,microstructure,mechanical,properties,composites,studied,through,experiments,numerical,simulation,results,that,2wt,best,comprehensive,Compared,pure,boron,carbide,hardness,bending,strength,increased,respectively,fracture,toughness,improved,observation,shows,improvement,mainly,attributed,pull,out,bridge,mechanism,crack,deflection,Based,cohesive,force,finite,element,method,dynamic,growth,process,simulated,energy,dissipation,multiphase,during,propagation,calculated,compared,can,effectively,adding
AB值:
0.559836
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