Preparation of Bi1.6Pb0.4Sr2Ca2Cu3O10+¦Ä films using sedimentation process and melt-quenched method

详细信息    查看全文

• 作者：Jonalds Tacneng ; ^{jtacneng@nip.upd.edu.ph} ; Roland Sarmago
• 关键词：High Temperature Superconductors ; Melting
• 刊名：Physics Procedia
• 出版年：2012
• 出版时间：2012
• 年：2012
• 卷：27
• 期：Complete
• 页码：288-291
• 全文大小：458 K

文摘

Bi1.6Pb0.4Sr2Ca2Cu3O10 +¦Ä (Bi-2223) films were fabricated on polished (110) and (001) MgO substrates using a Sedimentation Process with Melt-Quenched heat treatment. The procedure involves suspending Bi-2223 powders in acetone and allows the liquid to evaporate and leave a deposit on the substrates. The sediment powders on the substrates were heat treated wherein the films were partially melted and subjected to prolonged post-annealing treatment at 860 ¡ãC. It is observed that quenching after post-annealing promoted single phase transition. Single phase Bi-2223 films were obtained with Tc ranging from 110 to 118 K. The films however are not well c-axis oriented although a number of XRD peaks show (00l) orientation. Bi-2223 predominates the films reaching up to ?0 % based on the XRD data. SEM micrographs show granular and interconnected morphologies with visible Cu-rich rods. X-ray Diffraction reveals these rods to be (Sr,Ca)-Cu-O phase.