4.7 Article

Synthesis of zirconium carbide powders using chitosan as carbon source

期刊

CERAMICS INTERNATIONAL
卷 39, 期 3, 页码 3409-3412

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ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2012.09.032

关键词

Zirconium carbide; Inorganic organic hybrid precursor; FTIR; X-ray techniques

资金

  1. National Natural Science Foundation of China [51102282]

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Chitosan zirconium complex, obtained by chelation of chitosan to zirconium, formed a novel precursor for zirconium carbide (ZrC). ZrC was synthesized via carbothermal reduction reaction using zirconium oxychloride (ZrOCl2 center dot 8H(2)O), and chitosan as sources of zirconium and carbon. The initiation of carbothermal reduction process was at about 1400 degrees C, and the reaction was substantially completed at a relatively lower temperature (similar to 1550 degrees C), compared with that using ZrOCl2 center dot 8H(2)O and phenolic resin as a carbon source. The conversions from as-synthesized preceramic precursors to ceramics were studied by means of FTIR, DSC-TG, SEM, EDS and XRD. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

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