| The Structure and Size-effect of Calcium Modified Lead Titanate Nanocrystal,Pb_(0.85)Ca_(0.15)TiO_3 |
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| 作者姓名： | FU Honggang** QIANG Liangsheng XU Chongquan and ZHAN Zhiqian |
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| 作者单位： | FU Honggang**，QIANG Liangsheng，XU Chongquan and ZHAN Zhiqian
(Department of Applied Chemistry，Harbin University of Technology，Harbin，150001 |
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| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＰＴＣｉｓａｋｉｎｄｏｆｉｍｐｏｒｔａｎｔｆｅｒｒｏｅｌｅｃｔｒｉｃｍａｔｅｒｉａｌｏｆｍｏｄｉｆｉｅｄｌｅａｄｔｉｔａｎａｔｅ，ｗｈｉｃｈｃａｎｍａｋｅｔｈｅｔｅｔｒａｇｏｎａｌ／ｃｕｂｉｃａｘｉａｌｒａｔｉｏｏｆｌｅａｄｔ...
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The Structure and Sizeeffect of Calcium Modified Lead Titanate Nanocrystal,
Pb0.85Ca0.15TiO3* |
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| FU Honggang**,QIANG Liangsheng,XU Chongquan and ZHAN Zhiqian.The Structure and Size-effect of Calcium Modified Lead Titanate Nanocrystal,Pb_(0.85)Ca_(0.15)TiO_3[J].Chemical Research in Chinese University,1999(2). |
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| Authors: | FU Honggang QIANG Liangsheng XU Chongquan and ZHAN Zhiqian |
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| Institution: | FU Honggang**,QIANG Liangsheng,XU Chongquan and ZHAN Zhiqian |
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| Abstract: | Calcium modified lead titanate nanocrystal material
Pb0.85Ca0.15TiO3 was synthesized by means of a solgel method. The changes of crystal
structure and grainsize of the samples were investigated under different conditions of heat
treatment. the results show that the tetragonal symmetry is reduced and the
ferroelectricparaelectric phase transformation temperature is decreased with the reduce of the
grainsize of the sample. the critical grainsize for the ferroelectricparaelectric phase
transformation at room temperature was calculated. The change regularities of the lattice
constant and tetragonality with the grainsize are discussed. |
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| Keywords: | PTC15 Nanocrystal Crystal structure Size effect |
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