A New Process with the Promise of High $J_{\text{c}}$ in Oxide Superconductors

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概要

• 論文の詳細を見る

• We report a new process which promises high critical current density in oxide superconductors. The process consists of three stages. Firstly a YBa2Cu3Ox sample is rapidly heated and quenched from the Y2O3 plus liquid region. Subsequently the quenched sample is reheated to the Y2BaCuO5 plus liquid region, and then slowly cooled with a temperature gradient in flowing oxygen. The process enables us to grow a superconducting phase unidirectionally and to suppress the second phase intrusion, leading to the production of well textured YBa2Cu3Ox which yields a high $J_{\text{c}}$ value in the presence of magnetic fields. It is also found that Bean's critical state is realized in such high $J_{\text{c}}$ samples.

• INSTITUTE OF PURE AND APPLIED PHYSICSの論文
• 1989-07-20

著者

• Morita Mitsuru

  R & D Laboratories-I, Nippon Steel Corporation

• Miyamoto Katsuyoshi

  R & D Laboratories-I, Nippon Steel Corporation

• MURAKAMI Masato

  R & D Laboratories-I, Nippon Steel Corporation

• DOI Kenji

  R & D Laboratories-I, Nippon Steel Corporation

• Morita Mitsuru

  R & D Laboratories-I, Nippon Steel Corporation, 1618 Ida, Nakahara-ku, Kawasaki 211

• Doi Kenji

  R & D Laboratories-I, Nippon Steel Corporation, 1618 Ida, Nakahara-ku, Kawasaki 211

• Murakami Masato

  R & D Laboratories-I, Nippon Steel Corporation, 1618 Ida, Nakahara-ku, Kawasaki 211

関連論文

• Critical Current Characteristics in Superconducting Y-Ba-Cu-O Prepared by the Melt Process
• Critical Current Densities in Superconducting Y-Ba-Cu-O Prepared by the Quench-and-Melt Growth Technique
• Flux Creep in High J_c YBa_2Cu_3O_7 Crystals
• Effect of Concentration Ratio and Preparation Process on the Superconducting Properties of the Y-Ba-Cu-O System
• Microstructural Study of the Y-Ba-Cu-O System at High Temperatures
• A New Process with the Promise of High $J_{\text{c}}$ in Oxide Superconductors

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