期刊論文
學年 | 82 |
---|---|
學期 | 2 |
出版(發表)日期 | 1994-02-01 |
作品名稱 | Preparation of a single phase Pb2Sr0.8La1.2Cu2O6.1+δ superconductor with a citrate precursor method |
作品名稱(其他語言) | |
著者 | Wang, C. M.; Wei, T. P.; Kao, H.-C. I. |
單位 | 淡江大學化學學系 |
出版者 | Amsterdam: Elsevier BV * North-Holland |
著錄名稱、卷期、頁數 | Physica B: Condensed Matter 194-196(2), pp.2169-2170 |
摘要 | A single phase Pb2Sr0.8La1.2Cu2O6.1+δ superconductor was prepared by a polymeric citrate precursor method. Metal nitrates of the nominal compositions were used as the starting materials. After pyrolysis of the gel-like polymeric citrates, the precursor obtained was calcined at 800 °C for 4 h, sintered at 790 °C for 6 h in the flowing nitrogen atmosphere followed by furnace cooling. The processing period was greatly reduced by this method compared with the conventional solid state reaction method. The chemical titration found that all the Pb ions were in the +2 state and the average copper valence was 1.601 indicating the δ value of 0.101 equivalent to hole concentration of 0.202 in the Cu-O plane of this superconductor. |
關鍵字 | |
語言 | en |
ISSN | 0921-4526 |
期刊性質 | 國外 |
收錄於 | SCI |
產學合作 | |
通訊作者 | |
審稿制度 | |
國別 | NLD |
公開徵稿 | |
出版型式 | 紙本 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/25140 ) |