教師資料查詢 | 類別: 期刊論文 | 教師: 王啟銘 WANG, CHI-MING (瀏覽個人網頁)

標題:Preparation of a single phase Pb2Sr0.8La1.2Cu2O6.1+δ superconductor with a citrate precursor method
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
語言英文
ISSN0921-4526
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別荷蘭
公開徵稿
出版型式紙本
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