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Journal of Inorganic Materials

Journal of Inorganic Materials >

2008 , Vol. 23 >Issue 4: 815 - 818

DOI: https://doi.org/10.3724/SP.J.1077.2008.00815

Research Paper

Synthesis of Ultra-fine ZrB2-ZrC Composite Powders by Inorganic Sol-gel Method

  • YAN Yong-Jie ,
  • ZHANG Hui ,
  • HUANG Zheng-Ren ,
  • LIU Xue-Jian ,
  • DONG Shao-Ming
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  • (1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 2. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China)

Received date: 2007-09-19

  Revised date: 2007-11-16

  Online published: 2008-07-20

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Abstract

Based on the basic principle of carbothermal reduction reactions in the ZrO2-B2O3-C system, ultra-fine ZrB2-ZrC composite powders were synthesized by sol-gel method using zirconium oxychloride, boric acid and phenolic resin as sources of zirconia, boron oxide and carbon, respectively. Thermodynamic change process, phase compositions, crystallite size and morphology of the synthesized powders were characterized by thermogravimetry-differential thermal analysis, X-ray diffraction and scanning electron microscope. The results show that ZrB2 and ZrC phases form at 1300℃. The carbothermal reduction reactions are completely finished when calcined at 1500℃ for 1h. The average crystallite size and specific surface area are about 200nm and 87m2/g, respectively. The agglomeration phenomenon is improved by adding 1.0wt% polyethylene glycol.

Key words： sol-gel method; zirconium carbide; zirconium diboride

Cite this article

YAN Yong-Jie , ZHANG Hui , HUANG Zheng-Ren , LIU Xue-Jian , DONG Shao-Ming . Synthesis of Ultra-fine ZrB2-ZrC Composite Powders by Inorganic Sol-gel Method[J]. Journal of Inorganic Materials, 2008 , 23(4) : 815 -818 . DOI: 10.3724/SP.J.1077.2008.00815

References

[1] Monteverde F, Bellosi A, Guicciardi S, et al. Journal of the European Ceramic Society, 2002, 22 (3): 279--283.
[2] Zhou H, He Y, Jin Z H, et al. Journal of the American Ceramic Society, 1995, 78 (9): 2534--2536.
[3] Upadhya K, Yang J M, Hoffmann W P, et al. The American Ceramic Society Bulletin, 1997, 76 (12): 51--56.
[4] 方舟, 王皓, 傅正义. 硅酸盐学报, 2004, 32 (6): 755--758.
[5] Tsuchida T, Yamamoto S. Solid State Ionics, 2004, 31 (1-4): 215--216.
[6] Preiss H, Schierhorn E, Brzezinka K W, et al. Journal of Materials Science, 1998, 33 (19): 4697--4706.
[7] Sacks M D, Wang C A, Yang Z H, et al. Journal of Materials Science, 2004, 39 (19): 6057--6066.
[8] Chen L Y, Gu Y L, Shi L, et al. Journal of Alloys and Compounds, 2004, 368 (1-2): 353--356.
[9] Chen L Y, Gu Y L, Yang Z H, et al. Scripta Materilia, 2004, 50 (7): 959--961.
[10] Bokhimi X, Morales A, Novaro O, et al. Journal of Solid State Chemistry, 1998, 135 (1): 28--35.
[11] Preiss H, Berger L M, Szulzewsky K. Carbon, 1996, 34 (1): 109--119.
[12] William G F. Journal of the American Ceramic Society, 2005, 88 (12): 3509--3512.
[13] Brain I主编, 程乃良等译. 纯物质热化学数据手册, 第三版. 北京: 科学出版社, 2003. 1852--1882.
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