| Автор | A N Maljuk |
| Автор | G A Emel'chenko |
| Автор | I I Zver'kova |
| Автор | A V Kosenko |
| Дата выпуска | 1994-08-01 |
| dc.description | The La<sub>2</sub>Cu<sub>2</sub>O<sub>5</sub> and La<sub>1-x</sub>Sr<sub>x</sub>CuO<sub>2.5- delta </sub> crystallization regions have been investigated in the system La<sub>2</sub>O<sub>3</sub>SrO-CuO at fixed molar ratio La<sub>2</sub>O<sub>3</sub>:CuO=1:8 in the range of SrO concentrations from 0.0 to 5.5 mol%. It has been shown that Sr is non-soluble in La<sub>2</sub>Cu<sub>2</sub>O<sub>5</sub> and the crystallization region of this phase is limited by the SrO concentration in the melt approximately=1 mol%. When the SrO concentration in the melt exceeds approximately=1% mol%, the La<sub>1-x</sub>Sr<sub>x</sub>CuO<sub>2.5- delta </sub> phase crystallization takes place below 1050 degrees C. The Sr lower solubility limit in La<sub>1-x</sub>Sr<sub>x</sub>CuO<sub>2.5- delta </sub> is found to be x approximately=0.05 atoms/FU. This compound does not exist if the Sr content is lower. The tentative projections of the primary crystallization phase boundaries of CuO, La<sub>2</sub>Cu<sub>2</sub>O<sub>5</sub>, La<sub>1-x</sub>Sr<sub>x</sub>CuO<sub>2.5- delta </sub> and La<sub>2-x</sub>Sr<sub>x</sub>CuO<sub>4- delta </sub> phases on the La<sub>2</sub>O<sub>3</sub>SrO-CuO composition triangles have been constructed. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Crystallization regions of the La<sub>2</sub>Cu<sub>2</sub>O<sub>5</sub> and La<sub>1-x</sub>Sr<sub>x</sub>CuO<sub>2.5- delta </sub> phases in the La<sub>2</sub>O<sub>3</sub>-SrO-CuO system |
| Тип | paper |
| DOI | 10.1088/0953-2048/7/8/012 |
| Electronic ISSN | 1361-6668 |
| Print ISSN | 0953-2048 |
| Журнал | Superconductor Science and Technology |
| Том | 7 |
| Первая страница | 596 |
| Последняя страница | 601 |
| Аффилиация | A N Maljuk; Inst. of Solid State Phys., Acad. of Sci., Chernogolovka, Russia |
| Аффилиация | G A Emel'chenko; Inst. of Solid State Phys., Acad. of Sci., Chernogolovka, Russia |
| Аффилиация | I I Zver'kova; Inst. of Solid State Phys., Acad. of Sci., Chernogolovka, Russia |
| Аффилиация | A V Kosenko; Inst. of Solid State Phys., Acad. of Sci., Chernogolovka, Russia |
| Выпуск | 8 |
