| (K1-xNax)（Ta（1-y）Nby）O3纳米粉体的水热合成研究 |
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| 引用本文： | 顾期斌,王钊,刘莎莉.(K1-xNax)（Ta（1-y）Nby）O3纳米粉体的水热合成研究[J].武汉理工大学学报,2011(11):6-9. |
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| 作者姓名： | 顾期斌 王钊 刘莎莉 |
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| 作者单位： | 湖北第二师范学院建筑与材料工程系;湖北大学物理学与电子技术学院; |
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| 基金项目： | 国家自然科学基金(50902046); 湖北省教育厅项目(B200731001) |
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| 摘 要： | 采用水热法合成了不同组分的无铅压电(K1-xNax)(Ta1-yNby)O3(KNTN)纳米粉体。研究结果表明,在高介质碱度条件下可以获得K/Na摩尔比为1的KNTN纳米粉体。随着K含量的增加,产物由单斜向四方晶型转变。产物中的Ta/Nb摩尔比与原料中Ta2O5/Nb2O5摩尔比呈线性关系。随着Ta含量的增加,KNTN由正交→四方→立方晶型转变,其微结构则由长方体逐渐转变为立方体结构。
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| 关 键 词： | 钽铌酸钾钠 纳米粉体 晶型转变 水热合成 |
Investigation on the Hydrothermal Synthesis of (K(1-x)Na_x)(Ta_(1-y)Nb_y)O_3 Nanopowders |
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| GU Qi-bin,WANG Zhao,LIU Sha-li.Investigation on the Hydrothermal Synthesis of (K(1-x)Na_x)(Ta_(1-y)Nb_y)O_3 Nanopowders[J].Journal of Wuhan University of Technology,2011(11):6-9. |
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| Authors: | GU Qi-bin WANG Zhao LIU Sha-li |
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| Affiliation: | GU Qi-bin1,WANG Zhao2,LIU Sha-li2 (1.Department of Civil and Material Engineering,Hubei University of Education,Wuhan 430205,China,2.Faculty of Physics and Electronic Technology,Hubei University,Wuhan 430062,China) |
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| Abstract: | (K1-xNax)(Ta1-yNby)O3(KNTN) nanopowders with different compositions were synthesized by hydrothermal method.The results showed that KNTN nanopowders with atomic molar ratio of K/Na = 1 could be obtained at high medium alkalinity condition.The phase structure gradually changed from monoclinic to the tetragonal phase as the increasing of K element of KNTN.The molar ratio of Ta/Nb in KNTN shows a linear relationship with that of the Ta2O5/Nb2O5 in the starting materials.With the increase of Ta content in KNTN,... |
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| Keywords: | (K1-xNax)(Ta1-yNby)O3 nanopowders phase transition hydrothermal synthesis |
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