| Sr0.4Ba0.6Nb2O6物相形成过程的XRD分析 |
| |
| 引用本文： | 黄清伟,王佩玲,严东生,程一兵.Sr0.4Ba0.6Nb2O6物相形成过程的XRD分析[J].无机材料学报,2002,17(4):841-844. |
| |
| 作者姓名： | 黄清伟 王佩玲 严东生 程一兵 |
| |
| 作者单位： | [1]中国科学院上海硅酸盐研究所高性能陶瓷和超微结构固定重点实验室，上海200050 [2]澳大利亚Monash大学材料工程系，墨尔本3168 |
| |
| 基金项目： | 国家自然科学基金项目（50072039），中国科学院海外杰出学者基金 |
| |
| 摘 要： | 采用X射线衍射技术（Guinier-Hagg相机）分析了Sr0.4Ba0.6Nb2O6（SBN40）原始混合粉料经不同温度煅烧后的相组成，并利用PIRUM程序对不同反应温度下形成铌酸锶钡相的晶胞尺寸进行了计算。结果表明：在Sr0.4Ba0.6Nb2O6的形成过程中将出现中间相Na5Nb4O15、Sr5Nb4O15、SrNb2O6与BaNb2O6，而SrNb2O6与BaNb2O6最终反应生成铌酸锶钡。反应生成的铌酸锶钡的晶胞参数随反应温度的升高而变小。依据这些实验结果，文中提出了Sr0.4Ba0.6Nb2O6相的形成机制。
|
| 关 键 词： | Sr0.4Ba0.6Nb2O6 物相形成过程 铌酸锶钡 XRD 形成机制 陶瓷 |
| 文章编号： | 1000-324X(2002)04-0841-04 |
| 收稿时间： | 2001-7-19 |
| 修稿时间： | 2001年7月19日 |
XRD Analysis for the Formation of Sr0.4Ba0.6Nb2O6 Phase |
| |
| HUANG Qing-Wei,WANG Pei-Ling,CHENG Yi-Bing,YAN Dong-Sheng.XRD Analysis for the Formation of Sr0.4Ba0.6Nb2O6 Phase[J].Journal of Inorganic Materials,2002,17(4):841-844. |
| |
| Authors: | HUANG Qing-Wei WANG Pei-Ling CHENG Yi-Bing YAN Dong-Sheng |
| |
| Affiliation: | 1.StateKeyLabofHighPerformanceCeramicsandSuperfineMicrostructure;ShanghaiInstituteofCeramics;ChineseAcademyofSciences;Shanghai200050;China;2.DepartmentofMaterialsEngineering,MonashUniversity,Victoria,3168,Australia |
| |
| Abstract: | The phase assembles of Sr0.4Ba0.6Nb2O6 (SBN40) starting powder mixture calcined at different temperatures were identified by X-ray Guinier-Hagg camera film data and the unit cell dimensions of strontium barium niobate (SBN) developed at different temperatures were calculated by using PIRUM program. It was found that four intermediate phases, i.e., Na5Nb4O15, Sr5Nb4O15, SrNb2O6 and BaNb2O6 were developed during the formation of Sr0.4Ba0.6Nb2O6 and the two latter phases reacted to form SBN. The unit cell dimensions of SBN decreased with increasing sintering temperature. On the basis of results, the corresponding formation mechanism of Sr0.4Ba0.6Nb2O6 phase was also suggested. |
| |
| Keywords: | formation mechanism strontium barium niobate XRD |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《无机材料学报》浏览原始摘要信息 |
|
点击此处可从《无机材料学报》下载全文 |
