| Автор | J J Roa |
| Автор | E Bartolomé |
| Автор | B Bozzo |
| Автор | X G Capdevila |
| Автор | X Granados |
| Автор | M Segarra |
| Дата выпуска | 2010-06-01 |
| dc.description | The mechanical properties of melt-textured YBCO bulk boundaries are a topic of special interest especially in the manufacturing of superconductor devices for engineering applications. Instrumented indentation technique is a powerful tool widely employed to characterize the mechanical properties of small volumes. We presented results of the nanohardness (H) and Young's modulus (E) across [001]-welds fabricated by silver welding. The residual imprints performed by a sharp tip indenter were observed by Field Emission Scanning Electron Microscope (FE-SEM) to investigate the different fracture mechanisms nucleated during the indentation process. Results show a decrease of the nanohardness across the grain boundary related to the appearance of a "welding path" free of Y-211 particles. The FE-SEM images show chipping and sink-in effects in that region. Remarkably, for zero-angle welds the mechanical properties are unaltered across the joint, thus probing the high quality of silver welds for large-scale applications. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | © 2010 IOP Publishing Ltd |
| Название | Nano-mechanical properties of silver-welded YBCO bulks |
| Тип | paper |
| DOI | 10.1088/1742-6596/234/1/012034 |
| Electronic ISSN | 1742-6596 |
| Print ISSN | 1742-6588 |
| Журнал | Journal of Physics: Conference Series |
| Том | 234 |
| Первая страница | 12034 |
| Последняя страница | 12039 |
| Выпуск | 1 |
