EFFECT OF AL2O3 AND BI2O3 ON THE FORMATION MECHANISM OF SN-DOPED BA2TI9O20
文献类型：期刊论文
| 作者 | J. Q. Yu ; H. W. Zhao ; J. S. Wang ; F. Xia |
| 刊名 | Journal of the American Ceramic Society
 |
| 出版日期 | 1994 |
| 卷号 | 77期号:4页码:1052-1056 |
| 关键词 | microwave dielectric resonator crystal-structure phase-equilibria bao-tio2 compound |
| ISSN号 | 0002-7820 |
| 中文摘要 | High-performance Ba2Ti9O20 ceramics are attracting great attention, but their formation mechanism still is somewhat unclear. The present investigation shows that the formation of Ba2Ti9O20 can be promoted strikingly by the participation of Bi2O3 and Al2O3. The effect of Bi2O3 on the formation of Ba2Ti9O20 is attributed to the fact that migration of the involved reactants is accelerated by liquid which forms from the melting of Bi2O3 above 830-degrees-C. This migration, however, is not the only rate-limiting factor. A high potential-energy barrier, resulting from stress that arises along the crystal-structured layers, also heavily restricts the formation of Ba2Ti9O20. The participation of Al2O3, on the other hand, can reduce the height of this potential-energy barrier and effectively improve the kinetics of the formation of Ba2Ti9O20 by causing the formation of BaAl2Ti6O16 crystals; these crystals intergrow with Ba2Ti9O20 crystals and result in decreased stress. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/38961]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | J. Q. Yu,H. W. Zhao,J. S. Wang,et al. EFFECT OF AL2O3 AND BI2O3 ON THE FORMATION MECHANISM OF SN-DOPED BA2TI9O20[J]. Journal of the American Ceramic Society,1994,77(4):1052-1056. |
| APA | J. Q. Yu,H. W. Zhao,J. S. Wang,&F. Xia.(1994).EFFECT OF AL2O3 AND BI2O3 ON THE FORMATION MECHANISM OF SN-DOPED BA2TI9O20.Journal of the American Ceramic Society,77(4),1052-1056. |
| MLA | J. Q. Yu,et al."EFFECT OF AL2O3 AND BI2O3 ON THE FORMATION MECHANISM OF SN-DOPED BA2TI9O20".Journal of the American Ceramic Society 77.4(1994):1052-1056. |
入库方式： OAI收割
来源：金属研究所
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