典型文献
Morphologies evolution and mechanical behaviors of SiC nanowires reinforced C/(PyC-SiC)n multilayered matrix composites
文献摘要:
SiC nanowires reinforced C/(PyC-SiC)n multilayered matrix composites (SM-CS for short) were prepared by combined with sol-gel and chemical vapor infiltration (CVI) method.Firstly,(PyC-SiOC)n multilayered structure was formed by cycles of impregnation and deposition.Then SiOC was transformed into SiC by heat-treatment,and (PyC-SiC)n multilayered structure would be obtained.At the same time,the PyC layer which was designed as the outmost layer could decrease gas supersaturation to form in-situ tubular SiC nanowires on the surface of multilayered structure.The results of three-point bending test showed that the maximum force of SM-CS composites was increased by the number of cycles of the preparation pro-cess,which were up to enhanced by 74.38% compared with C/C composite materials.The fracture surface showed that the improvement was due to the multiscale reinforcing system of (PyC-SiC)n multilayered structure and SiC nanowires.Multilayered structure can protect carbon fibers and release stress concen-tration by induction of cracks.And the mechanical interlocking effect of SiC nanowires could reinforce bonding force of the remaining matrix.
文献关键词:
中图分类号:
作者姓名:
Xinfa Tian;Hejun Li;Xiaohong Shi;Hongjiao Lin;Ningning Yan;Tao Feng
作者机构:
State Key Laboratory of Solidification Processing,Carbon/Carbon Composites Research Center,Northwestern Polytechnical University,Xi'an 710072,China;School of Mechanics,Civil Engineering & Architecture,Northwestern Polytechnical University,Xi'an 710072,China
文献出处:
引用格式:
[1]Xinfa Tian;Hejun Li;Xiaohong Shi;Hongjiao Lin;Ningning Yan;Tao Feng-.Morphologies evolution and mechanical behaviors of SiC nanowires reinforced C/(PyC-SiC)n multilayered matrix composites)[J].材料科学技术(英文版),2022(01):190-198
A类:
outmost,Multilayered
B类:
Morphologies,evolution,mechanical,behaviors,SiC,nanowires,reinforced,PyC,multilayered,matrix,composites,SM,CS,short,were,prepared,by,combined,sol,gel,chemical,vapor,infiltration,CVI,method,Firstly,SiOC,structure,was,cycles,impregnation,deposition,Then,transformed,into,heat,treatment,would,obtained,At,same,which,designed,could,decrease,gas,supersaturation,situ,tubular,surface,results,three,point,bending,test,showed,that,maximum,increased,number,preparation,cess,enhanced,compared,materials,fracture,improvement,due,multiscale,reinforcing,system,can,protect,carbon,fibers,release,stress,concen,induction,cracks,And,interlocking,effect,bonding,remaining
AB值:
0.494353
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