Carbon nanotube reinforced nickel matrix nanocomposites fabricated by spark plasma sintering process

Title
Carbon nanotube reinforced nickel matrix nanocomposites fabricated by spark plasma sintering process
Authors
황준연홍경태Tiley, JBanerjee, R홍순형
Keywords
carbon nanotube; metal matrix composite; spark plasma sintering; TEM
Issue Date
2013-04
Publisher
대한금속재료학회 춘계 학술대회
Abstract
The carbon nanotube reinforced Ni matrix nanocomposites have been synthesized using spark plasma sintering process. Two different types of pre-mixed powders have been prepared by molecular-level mixing process and ball milling process. The CNT/Ni nanocomposites sintered using molecular level mixed CNT/Ni nanocomposite powder showed significant improvement in yield strength compared to ball milled Ni-CNT nanocomposite. The improvement in mechanical properties has been attributed due to homogeneous distribution of CNTs in to nickel matrix as well good bonding and high strength of Ni-CNT interface that helps significantly to transfer load between CNT and nickel matrix. These nanocomposites have been characterized in detail using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and, Raman spectroscopy in order to determine the state of the nanotubes post processing, their distribution, as well as the nature of the nanotube/matrix interface.
URI
http://pubs.kist.re.kr/handle/201004/44823
Appears in Collections:
KIST Publication > Conference Paper
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