Characterization of the negative thermal expansion material Zr1-xHfxW2O8
来源期刊：Rare Metals2003年第2期
论文作者：SHEN Rong WANG Cong WANG Tianmin DONG Cheng, CHEN Hong, and LIANG Jingkui) Center of Material Physics and Chemistry, School of Sciences, Beijing University of Aeronautics and Astronautics, Beijing , China) School of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming , China) Institute of Physics, Chinese Academy of Science, Beijing , China (Received --)
文章页码：107 - 111
摘 要：<正> The oxide ZrW2O8 displays unusual property of isotropic negative thermal expansion in a large wide temperature range, which makes it have a number of important potential applications. The cubic Zr1-xHfxW2O8 （x = 0,0.3, 0.5, 0.7, and 1.0） were synthesized by standard solid state reaction technique. The high and low temperature X-ray diffraction analysis indicate that the substitution of the Hf4+ for Zr4+ only leads to reducing the lattice constants, and the changes of negative thermal expansion coefficients are not obvious. The linear expansion coefficients of Zr1-xHfxW2O8 （x = 0, 0.3, 0.5, 0.7, and 1.0） are about -6
SHEN Rong WANG Cong WANG Tianmin DONG Cheng, CHEN Hong, and LIANG Jingkui1) Center of Material Physics and Chemistry, School of Sciences, Beijing University of Aeronautics and Astronautics, Beijing 100083, China2) School of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China3) Institute of Physics, Chinese Academy of Science, Beijing 100080, China (Received 2002-04-01)
摘 要：<正> The oxide ZrW2O8 displays unusual property of isotropic negative thermal expansion in a large wide temperature range, which makes it have a number of important potential applications. The cubic Zr1-xHfxW2O8 （x = 0,0.3, 0.5, 0.7, and 1.0） were synthesized by standard solid state reaction technique. The high and low temperature X-ray diffraction analysis indicate that the substitution of the Hf4+ for Zr4+ only leads to reducing the lattice constants, and the changes of negative thermal expansion coefficients are not obvious. The linear expansion coefficients of Zr1-xHfxW2O8 （x = 0, 0.3, 0.5, 0.7, and 1.0） are about -6
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