| ZrW2O8微波合成、表征及负膨胀行为研究 |
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| 引用本文： | 孔向阳,吴建生,曾振鹏.ZrW2O8微波合成、表征及负膨胀行为研究[J].硅酸盐学报,1999,27(3):266-269. |
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| 作者姓名： | 孔向阳 吴建生 曾振鹏 |
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| 作者单位： | 上海交通大学教育部高温材料及高温测试开放实验室,材料系 |
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| 摘 要： | 采用湿化学－微波合成工艺制备了具有负膨胀行为的ＺｒＷ２Ｏ８粉体，Ｘ射线衍射和Ｒａｍａｎ光谱分析结果表明，合成产物是基本单一的立方结构的ＺｒＷ２Ｏ８。用ＳＥＭ观察了样品的形貌，热膨胀仪测定了样品从室温到８００℃的膨胀行为，其膨胀系数的平均值为－７．９×１０＾－６Ｋ＾－１。
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| 关 键 词： | 钨酸锆 负膨胀 微波合成 结构表征 |
MICROWAVE SYNTHESIS AND CHARACTERIZATION OF ZrW2O8 WITH NEGATIVE THERMAL EXPANSION |
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| Kong Xiangyang,Wu Jiansheng,Zeng Zhenpeng.MICROWAVE SYNTHESIS AND CHARACTERIZATION OF ZrW2O8 WITH NEGATIVE THERMAL EXPANSION[J].Journal of The Chinese Ceramic Society,1999,27(3):266-269. |
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| Authors: | Kong Xiangyang Wu Jiansheng Zeng Zhenpeng |
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| Abstract: | ZrW2O8 with negative thermal expansion was prepared by microwave synthesis combined with wet_chemical process. The results of XRD and Raman spectra show that the samples contain single cubic phase of ZrW2O8. The morphology was observed by SEM. The thermal expansion coefficient of the sample was measured by dilatometer at room temperature to 800 and the average value of the coefficient is -7.910-6 K-1. |
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| Keywords: | zirconium tungstate negative thermal expansion microwave synthesis structure characterization |
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