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Journal of Inorganic Materials

Journal of Inorganic Materials >

2007 , Vol. 22 >Issue 1: 70 - 74

DOI: https://doi.org/10.3724/SP.J.1077.2007.00070

Research Paper

Hydrothermal Synthesis of Negative Thermal Expansion Material ZrW1.7Mo0.3O8 Powder

  • LIU Qin-Qin ,
  • YANG Juan ,
  • SUN Xiu-Juan ,
  • CHENG Xiao-Nong
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  • School of Material Science and Engineering, Jiangsu University,
    Zhenjiang 212013, China

Received date: 2006-01-23

  Revised date: 2006-05-08

  Online published: 2007-01-20

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Abstract

The negative thermal expansion material cubic phase ZrW1.7Mo0.3O8 powder was synthesized by using zirconium oxynitric, ammonium tungstate and ammonium molydbate as raw materials. X-ray powder diffraction (XRD), thermogravimetric analysis (TG-DSC), Fourier transform infrared spectroscopy (FT-IR), scanning electron
micrograph (SEM) were used to study the crytallization process of the precursor, crystallinity and crystal morphology of the resulted product.
The results show that pure cubic ZrW1.7Mo0.3O8 are prepared, and the particle size distribution is relatively uniform. In the temperature range from ambient temperature to 700℃, the intrinsic and macro thermal expansion coefficients of cubic ZrW1.7Mo0.3O8 are -6.61×10-6K-1 and -5.76×10-6K-1, respectively.

Key words： hydrothermal synthesis; negative thermal expansion material; ZrW1.7Mo0.3O8

Cite this article

LIU Qin-Qin , YANG Juan , SUN Xiu-Juan , CHENG Xiao-Nong . Hydrothermal Synthesis of Negative Thermal Expansion Material ZrW1.7Mo0.3O8 Powder[J]. Journal of Inorganic Materials, 2007 , 22(1) : 70 -74 . DOI: 10.3724/SP.J.1077.2007.00070

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