有机合成高碳锆比碳化锆陶瓷的先驱体及其热裂解性能

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Abstract Using zirconium tetrachloride as zirconium source, and benzyl methanol as carbon source, precursor benzyl alcohol zirconium (BAZ) of high carbon zirconium ratio (28:1 atomic ratio) zirconium carbide ceramic was prepared by 3 different solvents (p-xylene solvent, m-xylene solvent and xylene solvent). The structure of the BAZ was characterized by FT-IR. The heat-resistant property was studied by TGA and the transformation of ceramic was studied by XRD. The results show that all zirconium carbide precursors prepared by different solvents are pyrolysised during 600-700 ℃ and turn to ZrC after 1 500 ℃ heat treatment. The precursor prepared by p-xylene solvent has the highest ceramic yield of 51.8% after 1 600 ℃ heat treatment with argon gas protection. The precursor prepared by xylene solvent has the highest pyrolysis temperature that is 670 ℃.

Key words： Zirconium carbide high carbon zirconium ratio precursor ceramic yield pyrolysis

Received: 28 February 2018 Published: 12 July 2019

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	Articles by authors
	LI Yiming
	SU Zhean
	YANG Xin
	HUANG Qizhong
	SHAO Junjie
	WANG Yujie
	FANG Cunqian

Cite this article:

LI Yiming,SU Zhean,YANG Xin, et al. Organic synthesis and pyrolysis properties of high carbon-zirconium ratio zirconium carbide precursor[J]. Materials Science and Engineering of Powder Metallurgy, 2019, 24(1): 89-94.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2019/V24/I1/89

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