标题：In-situ growth of TiB2 whiskers in TiB2-TiCx matrix powder
作者：Xu, Liang; Huang, Chuanzhen; Liu, Hanlian; Zou, Bin; Zhu, Hongtao; Wang, Jun
作者机构：[Xu, Liang; Huang, Chuanzhen; Liu, Hanlian; Zou, Bin; Zhu, Hongtao; Wang, Jun] Shandong Univ, Ctr Adv Jet Engn Technol CaJET, Sch Mech Engn, Jinan 250 更多
会议名称：3rd International Conference on Frontiers of Manufacturing Science and Measuring Technology (ICFMM 2013)
会议日期：JUL 30-31, 2013
来源：FRONTIERS OF MANUFACTURING SCIENCE AND MEASURING TECHNOLOGY III, PTS 1-3
关键词：TiB2 whiskers; whisker morphology; growth mechanism; X-ray diffraction
摘要：The TiB2 whiskers were fabricated in TiB2/TiCx composites by the in-situ synthesis process. The phase composition, thermodynamics, weight loss and lattice parameters of the obtained phases were studied. The obtained TiB2 whiskers showed an aspect ratio of 10-20 and a diameter of 0.5-1.5 mu m. The synthesized TiC was a non-stoichiometric phase with a lattice parameter of 4.274 angstrom. Most of the whiskers had the cylinder shape; whereas, a few whiskers showed a bead-necklace morphology. The growth mechanisms of TiB2 whiskers were governed by the solid-liquid-solid (S-L-S) mechanism and the particle-to-particle connection mechanism.