标题:Study on in-situ synthesis of ZrB2 whiskers in ZrB2-ZrC matrix powder for ceramic cutting tools
作者:Xu, Liang; Huang, Chuanzhen; Liu, Hanlian; Zou, Bin; Zhu, Hongtao; Zhao, Guolong; Wang, Jun
作者机构:[Huang, Chuanzhen] Shandong Univ, Sch Mech Engn, Ctr Adv Jet Engn Technol CaJET, Jinan 250061, Shandong, Peoples R China.; Shandong Univ, Minist Edu 更多
通讯作者:Huang, CZ
通讯作者地址:[Huang, CZ]Shandong Univ, Sch Mech Engn, Ctr Adv Jet Engn Technol CaJET, Jinan 250061, Shandong, Peoples R China.
来源:INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
出版年:2013
卷:37
页码:98-105
DOI:10.1016/j.ijrmhm.2012.11.001
关键词:ZrB2 whisker; In-situ synthesis; Ceramic cutting tools; Growth; mechanism; ZrB2-ZrC matrix
摘要:The composite powder of ZrB2 whisker-toughened ZrB2-ZrC matrix ceramic tool materials was synthesized by in-situ synthesis process combined with the carbothermal reduction method. The product contained ZrB2 as the major phase and ZrC/Ni2B as the minor phases. When increasing the synthesis temperature from 1400 degrees C to 1700 degrees C, the lattice parameters of ZrB2 (a and c) decreased linearly, meanwhile, ZrC exhibited a non-stoichiometric property through the variation of the lattice parameter. The ZrB2 whiskers showed an aspect ratio of 10-30 and a diameter of 1-3 mu m. The agglomeration of the ZrB2-ZrC matrix powder and the morphology of bonding particles in the whiskers were also observed. The solid-liquid-solid (S-L-S) mechanism and the anisotropic Ostwald ripening were found to govern the growth of the ZrB2 whiskers during the in-situ synthesis process. (C) 2012 Elsevier Ltd. All rights reserved.
收录类别:SCOPUS;SCIE
WOS核心被引频次:20
Scopus被引频次:22
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84872156407&doi=10.1016%2fj.ijrmhm.2012.11.001&partnerID=40&md5=1590ef17d74487eea910df7e1a916b71
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