Phase transformation behavior of ZrO2 by addition of carbon nanotubes consolidated by spark plasma sintering

Title
Phase transformation behavior of ZrO2 by addition of carbon nanotubes consolidated by spark plasma sintering
Author(s)
한영환L. Shen[L. Shen]C. Xiang[C. Xiang]H. Tang[H. Tang]A. Mukherjee[A. Mukherjee]김석영배소익Q. Huang[Q. Huang]
Keywords
MECHANICAL-PROPERTIES; CERAMICS; COMPOSITES; MICROSTRUCTURE
Issue Date
201311
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
SCRIPTA MATERIALIA, v.69, no.10, pp.736 - 739
Abstract
Commercial ZrO2/carbon nanotube (CNT) composite powders were sintered by spark plasma sintering (SPS). The densification behavior during SPS was investigated by analysis of recorded shrinkage plots, and addition of CNTs was found to alter the sintering mechanism. Moreover, the addition of CNTs could also lead to refined grain size, improved fracture toughness as well as reduced Vickers hardness. Raman spectroscopy revealed an initially decreasing and then increasing tendency for the tetragonal to monoclinic phase transformation during indentation of the composites. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/28646http://dx.doi.org/10.1016/j.scriptamat.2013.08.015
ISSN
1359-6462
Appears in Collections:
공과대학 > 신소재공학부 > Articles
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