Well-Dispersed Carbon Nanotubes for Greatly Enhanced Mechanical Properties of Alumina-Based Composites
- 作者: Chen Y.1, Feng Y.1, Wang Y.1, Mo F.1, Qian G.1, Yu D.1, Liu W.1, Zhang X.1
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隶属关系:
- School of Materials Science and Engineering, Hefei University of Technology
- 期: 卷 58, 编号 2 (2017)
- 页面: 188-193
- 栏目: Article
- URL: https://bakhtiniada.ru/1083-4877/article/view/248820
- DOI: https://doi.org/10.1007/s11148-017-0079-y
- ID: 248820
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详细
Multi-wall carbon nanotubes (MWCNTs) reinforced Al2O3 composites (MWCNTs/Al2O3) have been prepared by a hot-pressing method, and the mechanical properties of the composites are investigated. Compared with the pure alumina, when adding 1.5 wt.% MWCNTs into the Al2O3 matrix, the composites have much higher flexure strength (403.6 MPa) and fracture toughness (4.21 MPa·m1/2), which shows a simultaneous increase of 38% in flexure strength and 35% in fracture toughness. The microstructural observations of MWCNTs/Al2O3 composites show that MWCNTs are homogeneously dispersed and embedded strongly in the alumina matrix due to the electrostatic interaction between MWCNTs and Al2O3, resulting in great improvement of flexure strength and fracture toughness. The reinforcement mechanism of the composites is mainly the pullout of MWCNTs from the matrix, MWCNTs bridging and crack deflection.
作者简介
Yangming Chen
School of Materials Science and Engineering, Hefei University of Technology
Email: fyhfut@163.com
中国, Hefei, Anhui
Yi Feng
School of Materials Science and Engineering, Hefei University of Technology
编辑信件的主要联系方式.
Email: fyhfut@163.com
中国, Hefei, Anhui
Yuqing Wang
School of Materials Science and Engineering, Hefei University of Technology
Email: fyhfut@163.com
中国, Hefei, Anhui
Fei Mo
School of Materials Science and Engineering, Hefei University of Technology
Email: fyhfut@163.com
中国, Hefei, Anhui
Gang Qian
School of Materials Science and Engineering, Hefei University of Technology
Email: fyhfut@163.com
中国, Hefei, Anhui
Dongbo Yu
School of Materials Science and Engineering, Hefei University of Technology
Email: fyhfut@163.com
中国, Hefei, Anhui
Wenhong Liu
School of Materials Science and Engineering, Hefei University of Technology
Email: fyhfut@163.com
中国, Hefei, Anhui
Xuebin Zhang
School of Materials Science and Engineering, Hefei University of Technology
Email: fyhfut@163.com
中国, Hefei, Anhui
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