Dispersion and structural evolution of multi-walled carbon nanotubes in ZrB2matrix

doi:10.1016/j.ceramint.2017.05.111

	Dispersion and structural evolution of multi-walled carbon nanotubes in ZrB2matrix
	Wu, Wen-Wen 1,2; Estili, Mehdi 2; Zhang, Guo-Jun 3,4; Sakka, Yoshio 2
刊名	Ceramics International
	2017
卷号	43 期号:13 页码:10533-10539
ISSN号	02728842
DOI	10.1016/j.ceramint.2017.05.111
英文摘要	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.
内容类型	期刊论文
源URL	[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
推荐引用方式 GB/T 7714	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.