Structural and electrical recovery of YBa2Cu3Ox that absorbed water by heat treatment

被引：0

作者：

Edo, S ^{[1
]}

Takama, T ^{[1
]}

机构：

[1] Hokkaido Univ, Fac Engn, Dept Appl Phys, Kita Ku, Sapporo, Hokkaido 0608628, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1999年 / 38卷 / 10期

关键词：

superconductor; YBa2Cu3Ox; water vapor; electrical property; crystal structure; recovery;

D O I：

10.1143/JJAP.38.5853

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The YBa2Cu3O6.4 superconductor transforms to a normal conductor with a long lattice spacing of about 13 Angstrom by annealing at around 200 degrees C in water vapor. Heating the normal conductor to a higher temperature led to the recovery of its structure and superconductivity. The recovery process was investigated by means of powder X-ray diffraction, ac magnetic susceptibility, thermogravimetry and differential scanning calorimetry measurements. The heat flow with an endothermic peak at 260 degrees C and the weight loss during heating revealed that the recovery is caused by desorption of water.

引用

页码：5853 / 5856

页数：4

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