SYNTHESIS OF YBA2CU4O8 POWDERS BY SOL-GEL METHOD UNDER AMBIENT PRESSURE

被引：54

作者：

MURAKAMI, H

YAEGASHI, S

NISHINO, J

SHIOHARA, Y

TANAKA, S

机构：

[1] Superconductivity Research Laboratory, ISTEC, Koto-ku, Tokyo, 135, 1-10-13, Shinonome

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1990年 / 29卷 / 03期

关键词：

Alkoxides; Ambient pressure; Sol-gel method; Superconductor; YBa[!sub]2[!/sub]Cu[!sub]3[!/sub]O[!sub]y[!/sub; YBa[!sub]2[!/sub]Cu[!sub]4[!/sub]O[!sub]8[!/sub;

D O I：

10.1143/JJAP.29.L445

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The 124 superconductor YBa2Cu4O8 was synthesized using a sol-gel method with starting solutions contained stoichiometric compositions of Y/Ba/Cu=1/2/3 and 1/2/4. Heattreatment was done below 800°C in 1 atm oxygen atmosphere; neither special equipment nor additives were required. Our result suggests that the 123 phase is thermodynamically metastable in the temperature region that had been thought to be the equilibrium region of 123-orthorhombic phase. © 1990 The Japan Society of Applied Physics.

引用

页码：L445 / L446

页数：2

共 9 条

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