Dispersion of multiwalled carbon nanotubes in aluminum powders

稀有金属（英文版）, 2009, 28(2): 175-180. doi: 10.1007/s12598-009-0035-1

^1, , ^2, , ^3, , ^4, , ^5,

1.Luoyan Ship Material Research Institute,Luoyan 471039,China

2.School of Materials Science and Engineering,Harbin Institute of Tecthnology at Weihai,Weihai 264209,China

3.Luoyan Ship Material Research Institute,Luoyan 471039,China

4.School of Materials Science and Engineering,Harbin Institute of Tecthnology,Harbin 150001,China

5.School of Materials Science and Engineering,Harbin Institute of Tecthnology,Harbin 150001,China

Dispersion of multiwalled carbon nanotubes in aluminum powders

DENG Chunfeng ^1, , ZHANG Peng ^2, , MA Yanxia ^3, , ZHANG Xuexi ^4, , WANG Dezun ^5,

1.Luoyan Ship Material Research Institute,Luoyan 471039,China

2.School of Materials Science and Engineering,Harbin Institute of Tecthnology at Weihai,Weihai 264209,China

3.Luoyan Ship Material Research Institute,Luoyan 471039,China

4.School of Materials Science and Engineering,Harbin Institute of Tecthnology,Harbin 150001,China

5.School of Materials Science and Engineering,Harbin Institute of Tecthnology,Harbin 150001,China

Keywords： metal matrix composite

Multiwalled carbon nanotubes (MWNTs) were treated with the reflux within the concentrated nitric acid for 0-25 h to purify and disperse the tangled MWNTs. The effect of reflux time on the morphology and the weight loss of MWNTs were investigated. Meanwhile, the dispersion of MWNTs with 0-2.0 wt.% in 2024AI powders using mechanical stirring with an assisting ultrasonic shaker in ethanol was also studied. The results show that the reflux time markedly affects the morphology of MWNTs. The weight loss of MWNTs increases as the reflux time in-creases. When the content of MWNTs is less than 1.0 wt.%, MWNTs can uniformly distribute on the surface of 2024Al powders;however, when the content of MWNTs is 2.0 wt.%, MWNTs entangle with each other on the surface of 2024Al powders.

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Dispersion of multiwalled carbon nanotubes in aluminum powders

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