摘要
Phase transformation from Β-BiNb O4 to α-BiNb O4 in BiNb O4 bulk samples was studied. From x-ray diffraction patterns, the transformation from Β to α phase of BiNb O4 could be observed by heating the bulk samples of Β-BiNb O4 from low temperatures to 700-1030 °C. Such a transformation did not occur in powder samples and in the cooling course. This phenomenon might be related with associated activation of stress and heat energy in the heating course. Differential thermal analysis, shrinkage, and dielectric properties as a function of temperature were carried out, and all the results confirmed the transformation from Β to α phase of BiNb O4.
| 源语言 | 英语 |
|---|---|
| 文章编号 | 172910 |
| 期刊 | Applied Physics Letters |
| 卷 | 90 |
| 期 | 17 |
| DOI | |
| 出版状态 | 已出版 - 2007 |
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