AN ELECTRON MICROSCOPE INVESTIGATION OF FLUX PINNING CENTRES IN SUPERCONDUCTING V3GA TAPES

被引：76

作者：

NEMBACH, E

TACHIKAWA, K

机构：

[1] National Research Institute for Metals, Nakameguro, Meguro-Ku, TokyoJapan

来源：

JOURNAL OF THE LESS-COMMON METALS | 1969年 / 19卷 / 04期

关键词：

D O I：

10.1016/0022-5088(69)90181-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The defect structure of V3Ga tapes produced by a solid-state diffusion process, has been studied by electron transmission using a microscope with an acceleration voltage of 500 kV. The only defects found in appreciable numbers are grain boundaries. It is concluded that these are the most important flux pinning centers. The amount of lossless current which can be carried by these tapes in the superconducting state is correlated with the grain size. © 1969.

引用

页码：359 / +

页数：1

共 26 条

[1]

ABRIKOSOV AA, 1957, SOV PHYS JETP-USSR, V5, P1174

[2] THEORY OF FLUX CREEP IN HARD SUPERCONDUCTORS [J].