Phase transitions among four BiB3O6 polymorphs: a detailed investigation
文献类型：期刊论文
| 作者 | Cong, RH ; Zhu, JL ; Wang, YX ; Yang, T ; Liao, FH ; Jin, CQ ; Lin, JH |
| 刊名 | CRYSTENGCOMM
 |
| 出版日期 | 2009 |
| 卷号 | 11期号:9页码:1971 |
| 关键词 | HIGH-PRESSURE SYNTHESIS BISMUTH BORATE BIB3O6 CRYSTAL-STRUCTURE 1ST-PRINCIPLES CALCULATIONS NEUTRON-DIFFRACTION OPTICAL-PROPERTIES META-OXOBORATE RE TRIBORATE GROWTH |
| ISSN号 | 1466-8033 |
| 通讯作者 | Wang, YX (reprint author), Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China. |
| 中文摘要 | The stability and phase transformations of the four BiB3O6 polymorphs, i.e., alpha-, beta-, gamma- and delta-BiB3O6, were investigated under different temperatures and pressures. beta-BiB3O6 is a metastable phase which can only be obtained by boric acid flux method in a sealed system at low temperature. The other polymorphs, alpha-, gamma- and delta-BiB3O6, are thermodynamic stable phases. Owing to the large kinetic effect, the phase transformations of the BiB3O6 polymorphs are generally slow, thus an extensive annealing process was used in this study. The study shows that alpha-BiB3O6 is the high-temperature phase and its stable area is narrow (710-715 degrees C) in atmospheric conditions, while gamma-BiB3O6 is a stable phase in the intermediate temperature range (similar to 680-710 degrees C). The results also confirm that delta-BiB3O6 is a high-pressure phase and all other polymorphs may transfer to delta-phase under high pressure. However, the delta-phase can be obtained by annealing alpha- or beta-BiB3O6 at relatively low temperature under ambient pressure. Therefore, delta-BiB3O6 can also be regarded as the low-temperature phase in this system. Based on the experimental results, as well as the thermodynamic principles, a pressure-temperature (P-T) phase diagram for the BiB3O6 system is proposed. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50837]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Cong, RH,Zhu, JL,Wang, YX,et al. Phase transitions among four BiB3O6 polymorphs: a detailed investigation[J]. CRYSTENGCOMM,2009,11(9):1971. |
| APA | Cong, RH.,Zhu, JL.,Wang, YX.,Yang, T.,Liao, FH.,...&Lin, JH.(2009).Phase transitions among four BiB3O6 polymorphs: a detailed investigation.CRYSTENGCOMM,11(9),1971. |
| MLA | Cong, RH,et al."Phase transitions among four BiB3O6 polymorphs: a detailed investigation".CRYSTENGCOMM 11.9(2009):1971. |
入库方式： OAI收割
来源：物理研究所
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