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濕粉末法制備TaC涂層
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國防科技大學(xué)新型陶瓷纖維及其復(fù)合材料重點(diǎn)實(shí)驗(yàn)室,國防科技大學(xué)新型陶瓷纖維及其復(fù)合材料重點(diǎn)實(shí)驗(yàn)室,國防科技大學(xué)新型陶瓷纖維及其復(fù)合材料重點(diǎn)實(shí)驗(yàn)室,國防科技大學(xué)新型陶瓷纖維及其復(fù)合材料重點(diǎn)實(shí)驗(yàn)室

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TB332

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Preparation of TaC coatings via wet powder process
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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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    摘要:

    本文通過在石墨基體涂覆前驅(qū)體料漿,在高溫下燒結(jié)后得到TaC涂層。通過XRD和SEM對(duì)涂層形貌與結(jié)構(gòu)進(jìn)行表征,TaC涂層由平均尺寸為12μm的致密顆粒組成。涂層晶粒生長方式為自由取向生長,這種生長模式使得裂紋在擴(kuò)展時(shí)會(huì)被釘扎在晶界連接處,而不會(huì)貫穿整個(gè)涂層。TaC涂層的硬度和彈性模量分別為15.35GPa 和 195.1GPa。

    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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沈小松,王松,李偉,張健.濕粉末法制備TaC涂層[J].稀有金屬材料與工程,2018,47(S2):13~16.[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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  • 收稿日期:2017-12-14
  • 最后修改日期:2017-12-14
  • 錄用日期:2018-02-01
  • 在線發(fā)布日期: 2018-11-01
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