| 煅烧条件对共沉淀法合成ZnZr_4(PO_4)_6粉体影响的研究 |
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| 引用本文： | 吴铭敏,王淑梅,周竹发.煅烧条件对共沉淀法合成ZnZr_4(PO_4)_6粉体影响的研究[J].中国粉体技术,2008,14(5). |
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| 作者姓名： | 吴铭敏 王淑梅 周竹发 |
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| 作者单位： | 苏州大学,材料工程学院,江苏,苏州,215021 |
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| 摘 要： | 采用共沉淀法制备了磷酸锆锌(α-ZnZr_4(PO_4))粉体,探讨了磷酸锆锌粉体合成机理,研究了煅烧温度、保温时间等煅烧条件对粉体合成的影响,并用TG-DTA、FT-IR、XRD、TEM等方法进行表征。实验表明前驱体在900～950℃煅烧2h可以获得平均粒径200nm、结晶完全的α-ZnZr4(PO4)6粉体,采用此粉体制备的陶瓷材料1200℃时热膨胀系数为-2.0×10-6℃-1。
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| 关 键 词： | 共沉淀法 煅烧温度 热膨胀 |
Study on Calcinating Conditions of ZnZr4(PO4)6 Powders by Coprecipitate Method |
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| Wu Mingmin,Wang Shumei,Zhou Zhufa.Study on Calcinating Conditions of ZnZr4(PO4)6 Powders by Coprecipitate Method[J].China Powder Science and Technology,2008,14(5). |
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| Authors: | Wu Mingmin Wang Shumei Zhou Zhufa |
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| Abstract: | The α-ZnZr4(PO4)6 powder was synthesized by coprecipitate method. The mechanism of synthesizing, effect of the calcination temperature and holding time to the powders synthesized were discussed. The precursor and the powder product were characterized by TG-DTA, FTIR, XRD, TEM etc. The results showed that the perfect crystallization powder of average grain size 200 nm were prepared at 900～950 ℃ for 2 hours. The ceramics had a lower thermal expansion coefficient of-2.0× 10-6 ℃-1 at 1 200℃. |
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| Keywords: | coprecipitate method calcination temperature thermal expansion |
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