MAGNETIC MELT TEXTURING COMBINED WITH HOT-PRESSING APPLIED TO SUPERCONDUCTING (2223)BI-PB-SR-CA-CU-O CERAMICS

被引：28
作者：
NOUDEM, JG
BEILLE, J
BEAUGNON, E
BOURGAULT, D
CHATEIGNER, D
GERMI, P
PERNET, M
SULPICE, A
TOURNIER, R
机构：
[1] CNRS,LAB LOUIS NEEL,F-38042 GRENOBLE 9,FRANCE
[2] CNRS,CRISTALLOG LAB,F-38042 GRENOBLE 9,FRANCE
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1995年 / 8卷 / 07期
关键词：
D O I：
10.1088/0953-2048/8/7/013
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We describe a new texturing process for superconducting ceramics which combines the effects of magnetic melt texturing (MMT) and hot pressing (HP), referred to in the following as the MMHPT process. This process essentially involves three steps: (i) a hot pressing at a temperature T-P, (ii) a partial melting in a magnetic field at a slightly higher temperature T-M, (iii) a second hot pressing at the same temperature T-p. Optimization of the thermomechanical treatment in a magnetic field applied to the (2223) Bi-Pb-Sr-Ca-Cu-O cuprates led to highly textured and dense samples carrying transport current density J(c) of 3800 A cm(-2) at 77 K in zero field.
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收藏
页码：558 / 563
页数：6
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