| 激光快速烧结合成A(WO4)2(A=Zr2+,Hf2+)的特性研究 |
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| 引用本文： | 王俊平,陈庆东,冯伟伟,梁二军.激光快速烧结合成A(WO4)2(A=Zr2+,Hf2+)的特性研究[J].人工晶体学报,2011,40(5):1281-1285. |
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| 作者姓名： | 王俊平 陈庆东 冯伟伟 梁二军 |
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| 作者单位： | 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 |
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| 基金项目： | 山东省自然科学基金(ZR2010DQ017); 滨州学院科研基金项目(BZXYG1116) |
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| 摘 要： | 利用二氧化碳激光快速凝固技术合成了负热膨胀材料ZrW2O8和HfW2 O8,Raman光谱和X射线衍射分析表明激光烧结合成的ZrW2 O8为正交相,压应力的大小估计在0.4～0.5 GPa之间,激光烧结合成的HfW2 O8,主要为立方晶系,含有极少量的正交系,压应力的大小估计在0.6 GPa左右,这是由于样品在快速凝固的过程中受到了压应力造成的.由于压应力的影响,二氧化碳激光快速凝固技术更适合HfW2O8的制备和合成.
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| 关 键 词： | 激光烧结 拉曼光谱 负热膨胀 压应力 |
Properties of A(WO_4)_2(A=Zr~(2+),Hf~(2+)) Synthesized by Laser Rapid Sintering |
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| WANG Jun-ping
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CHEN Qing-dong
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FENG Wei-wei
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LIANG Er-jun.Properties of A(WO_4)_2(A=Zr~(2+),Hf~(2+)) Synthesized by Laser Rapid Sintering[J].Journal of Synthetic Crystals,2011,40(5):1281-1285. |
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| Authors: | WANG Jun-ping CHEN Qing-dong FENG Wei-wei LIANG Er-jun |
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| Institution: | WANG Jun-ping1,CHEN Qing-dong1,FENG Wei-wei1,LIANG Er-jun2 (1.Department of Physics and Electronics Science,Binzhou College,Binzhou 256600,China,2.Key Laboratory of Material Physics of Ministry of Education,Physical Science and Technology College,Zhengzhou University,Zhengzhou 450052,China) |
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| Abstract: | Negative thermal expansion material of ZrW2O8 and HfW2O8 were successfully synthesized by rapid solidification with CO2 laser.The results of X-ray diffraction and Raman spectroscopic studies show that ZrW2O8 is orthorhombic phase and the strength of the compressive stress is estimated to be around 0.4~0.5 GPa.HfW2O8 was solidified in cubic structure with minor contents of orthorhombic phase and the stress was estimated to be about 0.6 GPa.This was explained by a compressive stress induced during the rapid s... |
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| Keywords: | laser sintering Raman spectrum negative thermal expansion compressive stress |
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