Preparation of TaC coatings via wet powder process

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Preparation of TaC coatings via wet powder process
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Affiliation:Science and Technology on Advanced Ceramic Fibres and Composites Laboratory,National University of Defense Technology,Science and Technology on Advanced Ceramic Fibres and Composites Laboratory,National University of Defense Technology,Science and Technology on Advanced Ceramic Fibres and Composites Laboratory,National University of Defense Technology,Science and Technology on Advanced Ceramic Fibres and Composites Laboratory,National University of Defense Technology
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Abstract:

The TaC coatings were prepared by precursor slurry application and subsequent sintering processes on graphite substrate. The prepared coating were investigated with their phase composition and morphology, by means of XRD and SEM. The coating consisted of single-phase TaC and had a dense granular structure containing grain with the mean size of 12μm. The coating had an isotropic granular structure, which make the crack tip would be pinned at a grain boundary junction and would not fully penetrate the coating. The hardness and the plastic modulus of the coating are 15.35GPa and 195.1GPa, respectively.

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[Xiaosong Shen, Song Wang, Wei Li, Jian Zhang. Preparation of TaC coatings via wet powder process[J]. Rare Metal Materials and Engineering,2018,47(S2):13~16.]
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Received:December 14,2017
Revised:December 14,2017
Adopted:February 01,2018
Online: November 01,2018
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