An effective approach to synthesize carbon nanotube-reinforced Al matrix composite precursor

被引:4
作者
Alanka, Sandeep [1 ]
Ratnam, Chanamala [2 ]
Prasad, Balla Srinivasa [1 ]
机构
[1] GITAM Univ, Mech Engn, Visakhapatnam 530045, Andhra Prades, India
[2] Andhra Univ, Mech Engn, Coll Engn A, Visakhapatnam 530003, Andhra Prades, India
关键词
cubic tumbler rod milling; FTIR; nanocomposite; organic deflocculant (formulator); SEM; starting precursor; XRD; MECHANICAL-PROPERTIES; ALUMINUM NANOCOMPOSITES; THERMAL-CONDUCTIVITY; MILLING TIME; DISPERSION; POWDERS; PLASMA;
D O I
10.1515/secm-2017-0229
中图分类号
TB33 [复合材料];
学科分类号
摘要
Aluminum-based nanocomposites reinforced with carbon nanotubes have increased scientific attention in today's life. The dispersion quality was the critical aspect, which decides the homogeneous distribution of CNTs within the Al matrix as starting precursors. In this study, a new attempt has been made to obtain a uniformly dispersed Al-0.75% CNT precursor via combining ultra-sonication, cubic tumbler rod milling, and spray drying. This process was integrated with organic deflocculant (formulator) in specific proportion to transform as a semi-wet-based route. The effect of milling media on the morphology and interface structure of the as-produced composite precursor after all the processing steps was investigated through scanning electron microscope (SEM), high-resolution transmission electron microscope (HRTEM), X-ray diffraction (XRD) analysis, Raman spectroscopy, and Fourier transform infrared spectroscopy. The results reveal that the approach is effective in CNT dispersion in Al precursor, which shields the nanotube structure from damage for longer periods of milling time due to the organic formulator mixture, and also, the CNT retention in the Al precursor with minimum clustering is identified compared to the ball milling process. Carbon traces were confirmed in the as-produced composite precursor by this approach.
引用
收藏
页码:983 / 991
页数:9
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