Fabrication of textured Ti2AlC lamellar composites with improved mechanical properties
Xie, Xi1,2; Yang, Rui1,2; Cui, Yuyou1,2; Jia, Qing1,2; Bai, Chunguang1,2
Corresponding AuthorJia, Qing( ; Bai, Chunguang(
AbstractTextured Ti2AlC lamellar composites have been successfully fabricated by a new method in the present work. The composites exhibit high compressive strength of ca 2 GPa, fracture toughness of 8.5 MPa m(1/2) (//c-axis), flexural strength of 735 MPa (//c-axis) and high hardness of 7.9 GPa (//c-axis). The strengthening mechanisms were discussed. The sintering and densification process was investigated and crystal orientation and microstructure were studied by electron backscattered diffraction techniques. The synthesis temperature is reduced to 1200 degrees C by using high surface-to-volume ratio Ti2AlC nano flakes. The Lotgering orientation factor of Ti2AlC and Ti3AlC2 {00l} planes in the textured top surface reaches 0.74 and 0.49, respectively. This new route may shed light on resolving the difficulties encountered in large scale fabrication of textured MAX phases. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordMAXphase Ti2AlC Machinable ceramics Ceramic-matrix composites Reactive milling In-situ synthesis Nanocomposites Texture Lamellar microstructure
Funding OrganizationNational Key R&D Program of China
Indexed BySCI
Funding ProjectNational Key R&D Program of China[2017YFB0306201] ; National Key R&D Program of China[2016YFB0701303]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000503164100011
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorJia, Qing; Bai, Chunguang
Affiliation1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230000, Anhui, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Xie, Xi,Yang, Rui,Cui, Yuyou,et al. Fabrication of textured Ti2AlC lamellar composites with improved mechanical properties[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,38:86-92.
APA Xie, Xi,Yang, Rui,Cui, Yuyou,Jia, Qing,&Bai, Chunguang.(2020).Fabrication of textured Ti2AlC lamellar composites with improved mechanical properties.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,38,86-92.
MLA Xie, Xi,et al."Fabrication of textured Ti2AlC lamellar composites with improved mechanical properties".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 38(2020):86-92.
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