Mechanical alloying of multi-walled carbon nanotubes reinforced aluminum composite powder

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Mechanical alloying of multi-walled carbon nanotubes reinforced aluminum composite powder. / Peng, Tao; Chang, Isaac.

In: Powder Technology, Vol. 266, 01.11.2014, p. 7-15.

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@article{f2612a03b000431bba0ef4bf390f4a55,
title = "Mechanical alloying of multi-walled carbon nanotubes reinforced aluminum composite powder",
abstract = "Carbon nanotubes (CNT) have emerged as a very promising reinforcement for ceramics, polymers and metals. Although the CNT reinforced composites show a significant improvement in mechanical, thermal and electrical properties, there are several critical challenges to the effective use of carbon nanotube reinforce composites such as agglomeration of CNT, poor distribution and weak bond between CNT and base matrix. In this paper, mechanical alloying (MA) was applied by the authors to disperse CNT in the aluminum matrix. Both stearic acid and ethanol were used as process control agents (PCA) to control the properties of particles. Scanning electron microscope (SEM), Raman spectroscope and particle size analyzer were employed to characterize the size, shape and morphology of the CNT–Al composite. The evolutions of CNT and CNT–Al mixture as well as the effect of PCA were studied. The present research indicates that mechanical alloying is an effective way to achieve homogenous distribution of CNT in the Al matrix. Ethanol as process control agent promotes the refinement of Al particles but also increases the damage of CNT during the ball milling process.",
keywords = "High energy ball milling, Carbon nanotube, CNT, Metal matrix composite, Raman spectrum, Particle size analysis",
author = "Tao Peng and Isaac Chang",
year = "2014",
month = nov,
day = "1",
doi = "10.1016/j.powtec.2014.05.068",
language = "English",
volume = "266",
pages = "7--15",
journal = "Powder Technology",
issn = "0032-5910",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Mechanical alloying of multi-walled carbon nanotubes reinforced aluminum composite powder

AU - Peng, Tao

AU - Chang, Isaac

PY - 2014/11/1

Y1 - 2014/11/1

N2 - Carbon nanotubes (CNT) have emerged as a very promising reinforcement for ceramics, polymers and metals. Although the CNT reinforced composites show a significant improvement in mechanical, thermal and electrical properties, there are several critical challenges to the effective use of carbon nanotube reinforce composites such as agglomeration of CNT, poor distribution and weak bond between CNT and base matrix. In this paper, mechanical alloying (MA) was applied by the authors to disperse CNT in the aluminum matrix. Both stearic acid and ethanol were used as process control agents (PCA) to control the properties of particles. Scanning electron microscope (SEM), Raman spectroscope and particle size analyzer were employed to characterize the size, shape and morphology of the CNT–Al composite. The evolutions of CNT and CNT–Al mixture as well as the effect of PCA were studied. The present research indicates that mechanical alloying is an effective way to achieve homogenous distribution of CNT in the Al matrix. Ethanol as process control agent promotes the refinement of Al particles but also increases the damage of CNT during the ball milling process.

AB - Carbon nanotubes (CNT) have emerged as a very promising reinforcement for ceramics, polymers and metals. Although the CNT reinforced composites show a significant improvement in mechanical, thermal and electrical properties, there are several critical challenges to the effective use of carbon nanotube reinforce composites such as agglomeration of CNT, poor distribution and weak bond between CNT and base matrix. In this paper, mechanical alloying (MA) was applied by the authors to disperse CNT in the aluminum matrix. Both stearic acid and ethanol were used as process control agents (PCA) to control the properties of particles. Scanning electron microscope (SEM), Raman spectroscope and particle size analyzer were employed to characterize the size, shape and morphology of the CNT–Al composite. The evolutions of CNT and CNT–Al mixture as well as the effect of PCA were studied. The present research indicates that mechanical alloying is an effective way to achieve homogenous distribution of CNT in the Al matrix. Ethanol as process control agent promotes the refinement of Al particles but also increases the damage of CNT during the ball milling process.

KW - High energy ball milling

KW - Carbon nanotube

KW - CNT

KW - Metal matrix composite

KW - Raman spectrum

KW - Particle size analysis

U2 - 10.1016/j.powtec.2014.05.068

DO - 10.1016/j.powtec.2014.05.068

M3 - Article

VL - 266

SP - 7

EP - 15

JO - Powder Technology

JF - Powder Technology

SN - 0032-5910

ER -