典型文献
Improved mechanical properties of SiC fiber reinforced silica-based ceramic cores fabricated by stereolithography
文献摘要:
Silica-based ceramic cores have been widely used to fabricate aero-engine hollow blades due to their moderate high temperature mechanical properties and excellent leachability.In this study,silica-based ceramics with SiC fiber addition were prepared via stereolithography,and the influence of SiC fiber con-tent on mechanical properties of the obtained silica-based ceramics was investigated.With the increase of SiC fiber content,linear shrinkage gradually decreased,while room temperature flexural strength and high temperature flexural strength first increased and then decreased.As SiC fiber content increased to 4.0 wt%,linear shrinkage was reduced to 0.62%resulting from the oxidation of SiC.Furthermore,room temperature flexural strength was improved from 11.79 MPa to 23.83 MPa and high temperature flex-ural strength was enhanced from 15.64 MPa to 34.62 MPa with 4.0 wt%SiC fiber addition due to the reinforcement of fibers and the enhancedβ-cristobalite content,which meets the need of ceramic cores.Therefore,it demonstrates the capability of fabricating high-performance and high-precision silica-based ceramic cores reinforced by SiC fibers via stereolithography for rapid manufacturing of hollow blades.
文献关键词:
中图分类号:
作者姓名:
W.Zheng;J.M.Wu;S.Chen;K.B.Yu;J.Zhang;Y.S.Shi
作者机构:
State Key Laboratory of Materials Processing and Die&Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Engineering Research Center of Ceramic Materials for Additive Manufacturing,Ministry of Education,Wuhan 430074,China
文献出处:
引用格式:
[1]W.Zheng;J.M.Wu;S.Chen;K.B.Yu;J.Zhang;Y.S.Shi-.Improved mechanical properties of SiC fiber reinforced silica-based ceramic cores fabricated by stereolithography)[J].材料科学技术(英文版),2022(21):161-168
A类:
leachability,cristobalite
B类:
Improved,mechanical,properties,SiC,reinforced,silica,cores,fabricated,by,stereolithography,Silica,have,been,widely,used,aero,engine,hollow,blades,due,their,moderate,high,temperature,excellent,In,this,study,ceramics,addition,were,prepared,via,influence,obtained,was,investigated,With,content,linear,shrinkage,gradually,decreased,while,room,flexural,strength,first,increased,then,wt,reduced,resulting,from,oxidation,Furthermore,improved,enhanced,reinforcement,fibers,which,meets,need,Therefore,demonstrates,capability,fabricating,performance,precision,rapid,manufacturing
AB值:
0.415931
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