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| SrTi_xZr_(1-x)O_3固溶体的合成及其热力学分析 | |
| 引用本文： | 刘彦婷,刘晓林,张勇,陈建峰.SrTi_xZr_(1-x)O_3固溶体的合成及其热力学分析[J].功能材料,2009,40(11). |
| 作者姓名： | 刘彦婷 刘晓林 张勇 陈建峰 |
| 作者单位： | 1. 北京化工大学,纳米材料先进制备技术与应用科学教育部重点实验室,北京,100029 2. 清华大学,新型陶瓷与精细工艺国家重点实验室,北京,100084 3. 北京化工大学,纳米材料先进制备技术与应用科学教育部重点实验室,北京,100029;北京化工大学,教育部超重力工程研究中心,北京,100029 |
| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
| 摘 要： | 以硝酸锶、氧氯化锆、四氯化钛和氢氧化钠为原料,采用直接沉淀法一步合成了SrTi_xZr_(1-x)O_3(x＞0.4)连续固溶体粉体,陈化处理x＜0.4的沉淀产物后,也可获得相应组成的结晶粉体.根据热力学原理,根据建立的计算模型,计算了生成SrTi_xZr_(1-x)O_3及其相关反应物的Gibbs生成自由能,从计算结果分析并解释了直接沉淀法合成SrTi_xZr_(1-x)O_3连续固溶体组成中的x取此范围. |
| 关 键 词： | 热力学计算 SrTi_xZr_(1-x)O_3固溶体 自由能 直接沉淀法 |
Synthesis of SrTi_xZr_(1-x)O_3 solution and thermodynamic analyze |
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| LIU Yan-ting,LIU Xiao-lin,ZHANG Yong,CHEN Jian-feng.Synthesis of SrTi_xZr_(1-x)O_3 solution and thermodynamic analyze[J].Journal of Functional Materials,2009,40(11). | |
| Authors: | LIU Yan-ting LIU Xiao-lin ZHANG Yong CHEN Jian-feng |
| Affiliation: | LIU Yan-ting1,LIU Xiao-lin1,ZHANG Yong2,CHEN Jian-feng1,3(1. Key Lab. for Nanomaterials,Ministry of Education,Beijing University of Chemical Technology,Beijing 100029,China,2. State Key Laboratory of New Ceramics and Fine Processing,Tsinghua University,Beijing 100084,3. Research Center of t he Ministry of Education for High Gravity Engineering and Technology,China) |
| Abstract: | Direct precipitation process was applied to synthesize SrTixZr1-xO3 (x>0.4) solid solution at low temperature with ambient pressure,in which strontium nitrate,zirconium oxychloride,titanium tetrachloride and sodium hydroxide were employed as reactants. In addition crystalline SrTixZr1-xO3 (x<0.4) can be obtained only when the corresponding composition precipitates were aged for a period of time. According to the principle of thermodynamics the Gibbs free energy of SrTixZr1-xO3 were calculated by a designed ... |
| Keywords: | thermodynamics calculation SrTi_xZr_(1_x)O_3 solid solution free energy direct precipitation |
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