HOT-PRESSING OF BI(PB)-SR-CA-CU-O SUPERCONDUCTING PELLETS

被引：18

作者：

PACHLA, W ^{[1
]}

KOVAC, P ^{[1
]}

HUSEK, I ^{[1
]}

机构：

[1] SLOVAK ACAD SCI,INST ELECT ENGN,BRATISLAVA 84239,SLOVAKIA

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1994年 / 7卷 / 11期

关键词：

D O I：

10.1088/0953-2048/7/11/008

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Dense and 2223 single-phase bulk bars of similar to 0.3 mm(2) cross-section were fabricated by uniaxial hot pressing. Effects of preliminary annealing and intermediate grinding on the properties of hot pressed bars are discussed. Optimal structure and physical properties were obtained for preliminary annealing of duration 100-120 h and subsequent hot pressing under a pressure of similar or equal to 25 MPa, and 80 h at a temperature of 850 degrees C for both processes, that resulted in highest contact measured value of J(c) = 11500 A cm(-2) at 77 K and 0 T.

引用

页码：820 / 823

页数：4

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