In Situ Growth of TiB2 Whiskers in TiB2-TiCx Matrix Powder

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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 μm. The synthesized TiC was a non-stoichiometric phase with a lattice parameter of 4.274 Å. 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.

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Edited by:

Wen-Pei Sung, Jimmy Chih-Ming Kao and Ran Chen

Pages:

647-650

Citation:

L. Xu et al., "In Situ Growth of TiB2 Whiskers in TiB2-TiCx Matrix Powder", Applied Mechanics and Materials, Vols. 401-403, pp. 647-650, 2013

Online since:

September 2013

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$38.00

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