PREPARATION OF YBA2CU4O8 BY A SEEDING METHOD AT AMBIENT PRESSURE

被引：5

作者：

IWAI, Y ^{[1
]}

NOGUCHI, M ^{[1
]}

SAITO, H ^{[1
]}

TAKATA, M ^{[1
]}

机构：

[1] NAGAOKA UNIV TECHNOL,NAGAOKA 94021,JAPAN

来源：

PHYSICA C | 1991年 / 181卷 / 4-6期

关键词：

D O I：

10.1016/0921-4534(91)90109-C

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A seeding method was applied to the processing method of YBa2Cu4O8 superconducting oxide (124 phase). Seed of the 124 phase was prepared by the HIP process. Seed with 25 wt.% was mixed with the matrix oxide prepared by decomposition of nitric salt. They were pressed and fired at 850-degrees-C under oxygen gas flow (1 atm of oxygen partial pressure). After repeating the firing, the 124 single phase was obtained. The sample of this 124 phase exhibited superconductivity at onset temperature of 82 K and zero resistive point at 76 K. From the matrix oxide (unseeded), however, the 124 phase could not be formed under the same conditions.

引用

页码：261 / 264

页数：4

共 18 条

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