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Dispersion and structural evolution of multi-walled carbon nanotubes in ZrB2matrix
Wu, Wen-Wen1,2; Estili, Mehdi2; Zhang, Guo-Jun3,4; Sakka, Yoshio2
2017
发表期刊Ceramics International
ISSN02728842
卷号43期号:13页码:10533-10539
摘要A large amount of multi-walled carbon nanotubes (MWCNTs) (10 vol%) were uniformly and intimately dispersed within ZrB2ceramic matrix using an aqueous hetero-coagulation approach followed by spark plasma sintering (SPS) at 1700 °C. Addition of MWCNTs inhibited grain growth, increased the relative density from 89% to 97%, and resulted in a composite with a fine, rather pore-free and uniform microstructure. Structural evolution of MWCNTs in the ZrB2matrix was further studied after SPS sintering at 1900 °C by XRD, Raman, scanning electron microscopy and TEM. When sintered at 1700 °C, the MWCNTs remained intact with their tubular one-dimensional structure though experiencing an expected radial elastic compression/buckling due to thermal misfit residual stresses. When sintered at 1900 °C, their unzipping into graphite nanoribbons was observed. For practical applications, MWCNTs content should however be lowered to prevent their agglomeration during grain growth. © 2017 Elsevier Ltd and Techna Group S.r.l.
DOI10.1016/j.ceramint.2017.05.111
EI入藏号20172103686908
EI主题词Multiwalled carbon nanotubes (MWCN)
EI分类号761 Nanotechnology - 819.4 Fiber Products - 933.1.2 Crystal Growth
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文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25946
专题中国科学院上海硅酸盐研究所
作者单位1.School of Physics and Information Technology, Shaanxi Normal University, Xi'an; 710119, China;
2.Research Center for Functional Materials (RCFM), National Institute for Materials Science (NIMS), Tsukuba; 305-0047, Japan;
3.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, Donghua University, Shanghai; 201620, China;
4.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Shanghai; 200050, China
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Wu, Wen-Wen,Estili, Mehdi,Zhang, Guo-Jun,et al. Dispersion and structural evolution of multi-walled carbon nanotubes in ZrB2matrix[J]. Ceramics International,2017,43(13):10533-10539.
APA Wu, Wen-Wen,Estili, Mehdi,Zhang, Guo-Jun,&Sakka, Yoshio.(2017).Dispersion and structural evolution of multi-walled carbon nanotubes in ZrB2matrix.Ceramics International,43(13),10533-10539.
MLA Wu, Wen-Wen,et al."Dispersion and structural evolution of multi-walled carbon nanotubes in ZrB2matrix".Ceramics International 43.13(2017):10533-10539.
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