| Bi_2O_3－ZnO－Nb_2O_5三元系统中焦绿石立方结构的研究 |
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| 引用本文： | 汪宏,王晓莉,姚熹.Bi_2O_3－ZnO－Nb_2O_5三元系统中焦绿石立方结构的研究[J].硅酸盐学报,1995(3). |
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| 作者姓名： | 汪宏 王晓莉 姚熹 |
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| 作者单位： | 西安交通大学电子材料研究室 |
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| 基金项目： | 国家“863”高技术新材料领域资助项目。 |
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| 摘 要： | 研究了Ｂｉ＿２Ｏ＿３－ＺｎＯ－Ｎｂ＿２Ｏ＿５三元系统中焦绿石立方结构。根据焦绿石结晶化学原理，对该系统中的焦绿石立方结构提出了多种假设通式，考虑了不同的阳离子分布，并近似计算了氧偏移量。用电子计算机进行了Ｘ射线的理论计算。通过理论峰强与实际峰强的比较，得到了与实例值符合较好的焦绿石立方结构模型。
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| 关 键 词： | 焦绿石，氧偏移量，立方结构 |
CUBIC PYROCHLORE STRUCTURE IN THE Bi_2O_3-ZnO-Nb_2O_5 SYSTEM |
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| Wang Hong, Wang Xiaoli, Yao Xi.CUBIC PYROCHLORE STRUCTURE IN THE Bi_2O_3-ZnO-Nb_2O_5 SYSTEM[J].Journal of The Chinese Ceramic Society,1995(3). |
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| Authors: | Wang Hong Wang Xiaoli Yao Xi |
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| Abstract: | The study of cubic pyrochlore structure in the Bi_2O_3-ZnO-Nb_2O_5 (BZN)system was carriedout.According to the principles of pyrochlore crystal chemistry,various possible general chemical formulaewere proposed with different cation distributions. The oxygen position parameter was calculated.Havingcompared the calculated X-ray intensities based on the theory with that obtained in the experiment,a modelof cubic pyrochlore structure is obtained in good agreement with the experimental results. |
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| Keywords: | pyrochlore oxygen position parameter cubic structure |
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