| Автор | S Elschner |
| Автор | J Bock |
| Автор | H Bestgen |
| Дата выпуска | 1993-06-01 |
| dc.description | The microstructural analysis of melt-cast processed Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>x</sub> reveals the existence of grain boundaries on two different length scales. Plate-shaped crystal grains of approximately 10 mu m length are textured along the c direction on a scale of 200-300 mu m, forming bundles of arbitrary orientation. To investigate the impact of the grain boundaries within and between bundles on the critical current density the authors have analysed the variation of the magnetic hysteresis with the sample size using different powder fractions and bulk material. It could be shown that the boundaries between the platelets within a bundle limit the overall transport current density in bulk material, whereas the boundaries between bundles do not further reduce its value. The results are in agreement with a TEM analysis of the grain boundaries. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Influence of granularity on the critical current density in melt-cast processed Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>x</sub> |
| Тип | paper |
| DOI | 10.1088/0953-2048/6/6/005 |
| Electronic ISSN | 1361-6668 |
| Print ISSN | 0953-2048 |
| Журнал | Superconductor Science and Technology |
| Том | 6 |
| Первая страница | 413 |
| Последняя страница | 420 |
| Аффилиация | S Elschner; Hoechst AG, Frankfurt-am-Main, Germany |
| Аффилиация | J Bock; Hoechst AG, Frankfurt-am-Main, Germany |
| Аффилиация | H Bestgen; Hoechst AG, Frankfurt-am-Main, Germany |
| Выпуск | 6 |
