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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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水热法合成负热膨胀材料ZrW2O8
, PP. 669-672
Keywords: ZrW2O8,水热合成,负热膨胀
Abstract:
采用水热法在500℃的低温条件下成功地合成了具有负热膨胀系数的材料ZrW2O8.X射线衍射结果表明,当加入的盐酸溶液浓度cHCl≥6mol/L时,可用水热法合成出多晶前驱体ZrW2O7(OH)2(H2O)2.运用热重-差热分析法研究了前驱体ZrW2O7(OH)2(H2O)2和产物ZrW2O8的热稳定性.结果表明,前驱体在较低温度(500℃)下灼烧即可获得产物ZrW2O8.经X射线衍射和红外光谱分析证明,所获得的产物为单一立方相ZrW2O8.
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