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高温快速固相烧结合成Zr1-xHfxW2O8的Raman光谱研究
引用本文:王俊平,陈庆东,梁二军.高温快速固相烧结合成Zr1-xHfxW2O8的Raman光谱研究[J].光散射学报,2009,21(2):163.
作者姓名:王俊平  陈庆东  梁二军
作者单位:1. 滨州学院物理与电子科学系,滨州,256600;郑州大学物理工程学院材料物理教育部重点实验室,郑州,450052
2. 滨州学院物理与电子科学系,滨州,256600
3. 郑州大学物理工程学院材料物理教育部重点实验室,郑州,450052
基金项目:河南省杰出科研人才创新工程项目 
摘    要:首次采用高温快速固相烧结的方法合成了Zr1-x Hfx W2O8(x=0, 0.2, 0.3, 0.4, 0.5, 0.6, 1)固溶体。合适的合成条件为: 温度1573~1693 K, 时间10 min~1 h, 该方法使合成时间和能耗比传统固相反应烧结显著降低。Zr1-x Hfx W2O8的晶胞参数与晶胞体积随Hf4+含量的增加而减小。合成的样品晶粒尺寸比常规固相烧结合成样品的颗粒尺寸较小, 颗粒大小在1~10 μm之间。拉曼光谱分析表明, Zr1-xHfxW2O8(0
关 键 词:高温快速固相烧结合成  负热膨胀  拉曼光谱
收稿时间:2009/3/30

Raman Spectroscopic Study of Zr_(1-x)Hf_xW_2O_8 by Fast Solid State Reaction
WANG Jun-ping,CHEN Qing-dong,LIANG Er-jun.Raman Spectroscopic Study of Zr_(1-x)Hf_xW_2O_8 by Fast Solid State Reaction[J].Chinese Journal of Light Scattering,2009,21(2):163.
Authors:WANG Jun-ping  CHEN Qing-dong  LIANG Er-jun
Institution:1.Department of Physics and Electronics;Binzhou College;Binzhou 256600;China;2.School of Physical Science & Engineering and Key Laboratory of Materials Physics of Ministry of Education of China;Zhengzhou 450052
Abstract:Zr1-xHfxW2O8(x=0,0.2,0.3,0.4,0.5,0.6,1)samples are successfully synthesized by fast solid state reaction for the first time.The appropriate temperature and sintering time are 1573~1693 K and 10~60 min.respectively.This approach reduces greatly the sintering time and energy waste.The grain sizes are between 1~10 μm,smaller than those by conventional solid state reaction.The crystal cell parameters and volume decrease with the contents of Hf4+.Raman spectroscopic study shows that the number of modes in Zr1-xHfxW2O8 is the same as that in α-ZrW2O8 and α-HfW2O8,but each mode position is between its corresponding mode positions of them;The internal vibrational modes shift to higher while the external modes shift to lower frequencies,and both gradually approach the mode positions of α-HfW2O8 with the contents of Hf4+.The results suggest that the properties of Zr1-xHfxW2O8(0
Keywords:High-heat and fast synthesis  NTE  Raman spectroscopy  
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