Journal of Inorganic Materials

• Research Paper •     Next Articles

Progress in Research on Negative Thermal Expansion of ZrW2O8

SHEN Rong1,2; WANG Cong1; WANG Tian-Min1   

  1. 1. Center of Material Physics and Chemistry; School of Science; Beijing University of Aeronautics and Astronautics; Beijing 100083; China; 2. The School of Materials and Metallurgical Engineering; Kunming University of Science and Technology; Kunming 650093; China
  • Received:2001-09-24 Revised:2001-11-19 Published:2002-11-20 Online:2002-11-20

Abstract: Zirconium tungstate shows a strong negative thermal expansion from 0.3K up to its decomposition temperature of 1050K. This behavior is especially unusual because the thermal contraction is isotropic over its entire existence range. Recent progress on the unusual negative thermal expansion properties and the origin of ZrW2O8 were reviewed. This paper also discussed the phase transition and its mechanism of zirconium tungstate ZrW2O8.

Key words: negative thermal expansion, ZrW2O8, framework structure

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