Details

Autor(en) / Beteiligte

• Huang, Ju-Chun
• Cheng, Chien Hong
• Sheen, Shyang Roeng
• Lee, Zhi Ling
• Lei, Chien Ming
• Wu, Maw Kuen

Titel

Preparation of Y2Ba4Cu7O15-δ Superconductor without High Oxygen Pressure

Ist Teil von

• Journal of the Chinese Chemical Society (Taipei), 1996-04, Vol.43 (2), p.139-143

Ort / Verlag

Weinheim: WILEY-VCH Verlag

Erscheinungsjahr

1996

Beschreibungen/Notizen

• The synthesis of bulk Y2Ba4Cu7O15‐δ superconductor at atmospheric oxygen pressure via solid state sintering is reported. Temperature ranging from 860 to 890 °C as well as time interval over 2 to 15 days were used to investigate the formation of the Y2Ba4Cu7O15‐δ phase. A time‐temperature profile characterizing the conditions for the preparation of Y2Ba4Cu7O15‐δ phase suggests the optimal condition to be sintering at 890 °C for over 10 days. Detailed results of X‐ray diffraction, electrical resistivity, iodometric titration and magnetization measurements are described.