GRAIN-ORIENTATION OF THE BI-SR-CA-CU-O SYSTEM CERAMICS BY HOT-FORGING AND THEIR SUPERCONDUCTING PROPERTIES

被引：6

作者：

ICHINOSE, N

SAITO, K

机构：

[1] Department of Materials Science and Engineering, Waseda University, Shinjuku-ku, Tokyo, 169

来源：

PHYSICA C | 1991年 / 190卷 / 1-2期

关键词：

D O I：

10.1016/S0921-4534(05)80243-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bi-Sr-Ca-Cu-O oxide superconductors with high density and oriented structure were prepared by hot-forging at a temperature of 770-degrees-C, The value of J(c) at 77 K of Bi2Sr2Ca2Cu3Oy increased with the increase of the rate of grain orientation change at this temperature of 770-degrees-C as the forging pressure increased, and reached a maximum value of 320 A/cm2 under a pressure of 300 kg/cm2. The density of this specimen was 5.98 g/cm3, though the J(c) value of the sample sintered in a conventional way was 54 A/cm2 and its density was 5.24 g/cm3.

引用

页码：177 / 179

页数：3

共 3 条

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