| 钛酸铋钠基无铅压电材料的溶胶-凝胶自蔓燃制备工艺研究 |
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| 引用本文： | 杜娴,杜慧玲,黄锦阳,史翔.钛酸铋钠基无铅压电材料的溶胶-凝胶自蔓燃制备工艺研究[J].人工晶体学报,2011,40(6):1504-1509. |
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| 作者姓名： | 杜娴 杜慧玲 黄锦阳 史翔 |
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| 作者单位： | 西安科技大学材料科学与工程学院,西安,710054 |
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| 基金项目： | 国家自然科学基金(51072162); 陕西省工业攻关项目(2010K09-18) |
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| 摘 要： | 采用溶胶-凝胶自蔓燃法合成具有单一钙钛矿相的0.76Na0.5Bi0.5TiO3-0.24SrTiO3(简写为NBT-ST)的超细粉体.采用热重/差热、X射线粉末衍射、红外光谱等分析手段对自蔓燃工艺前后的粉体进行了分析表征,通过对合成工艺中溶胶pH值、水浴温度、柠檬酸与硝酸根离子配比、热处理温度等参数的优化,获得了制备单一钙钛矿结构的NBT-ST无铅压电材料超细粉体的最优工艺参数:溶胶pH值为8、水浴温度为80℃、柠檬酸与硝酸根离子配比为1.25∶1,185℃左右凝胶发生自蔓燃,热处理温度为550 ℃,保温时间为1h.
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| 关 键 词： | 钛酸铋钠 钛酸锶 钙钛矿相 溶胶-凝胶自蔓燃法 |
Study on Preparation Technology of Bismuth Sodium Titanate Based Lead-free Piezoelectric Materials by Sol-gel Combustion Method |
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| DU Xian
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DU Hui-ling
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HUANG Jin-yang
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SHI Xiang.Study on Preparation Technology of Bismuth Sodium Titanate Based Lead-free Piezoelectric Materials by Sol-gel Combustion Method[J].Journal of Synthetic Crystals,2011,40(6):1504-1509. |
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| Authors: | DU Xian DU Hui-ling HUANG Jin-yang SHI Xiang |
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| Institution: | DU Xian,DU Hui-ling,HUANG Jin-yang,SHI Xiang (College of Materials Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China) |
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| Abstract: | 0.76Na0.5Bi0.5TiO3-0.24SrTiO3(abbr.as NBT-ST) ultrafine powders with a pure perovskite phase were synthesized by sol-gel combustion method.The powders before and after combustion were characterized by thermogravimetric(TG),differential thermal analysis(DTA),X-ray powder diffraction(XRD) and Infrared spectroscopy(IR).The process parameters,like pH value of the solution,heating temperature,mole ratio of citric acid to nitrates,calcination temperature,were improved to obtain the optimum process parameters.NBT-... |
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| Keywords: | bismuth sodium titanate strontium titanate perovskite phase sol-gel combustion method |
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