| Автор | W Zhang |
| Автор | E E Hellstrom |
| Дата выпуска | 1995-06-01 |
| dc.description | The phase assemblages that form when Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>8</sub> (2212) incongruently melts have been studied as a function of temperature and partial pressure of O<sub>2</sub> in the surrounding atmosphere. The critical phase assemblage for melt processing is the one present when 2212 begins to form from the melt on cooling. Between 0.001 and 0.01 atm O<sub>2</sub> the key phase in this assemblage is Bi<sub>2</sub>(Sr,Ca)<sub>3</sub>O<sub>3</sub>, from 0.075 to 0.30 atm O<sub>2</sub> it is (Sr,Ca)CuO<sub>2</sub>, and from 0.40 to 1 atm O<sub>2</sub> it is (Sr,Ca)<sub>14</sub>Cu<sub>24</sub>O<sub>x</sub>. The range from 0.40 to 1 atm O<sub>2</sub> is advantageous for melt processing as shown by the homogeneity of the microstructure of fully processed tape and the higher J<sub>c</sub> of tapes processed in 1 atm O<sub>2</sub>. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The effects of oxygen on melt-processing Ag-sheathed Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>8</sub> conductors |
| Тип | paper |
| DOI | 10.1088/0953-2048/8/6/006 |
| Electronic ISSN | 1361-6668 |
| Print ISSN | 0953-2048 |
| Журнал | Superconductor Science and Technology |
| Том | 8 |
| Первая страница | 430 |
| Последняя страница | 438 |
| Аффилиация | W Zhang; Appl. Superconductivity Center, Wisconsin Univ., Madison, WI, USA |
| Аффилиация | E E Hellstrom; Appl. Superconductivity Center, Wisconsin Univ., Madison, WI, USA |
| Выпуск | 6 |
