NB-SI A 15 COMPOUNDS PRODUCED BY LIQUID QUENCHING

被引：32

作者：

WATERSTRAT, RM ^{[1
]}

HAENSSLER, F ^{[1
]}

MULLER, J ^{[1
]}

机构：

[1] UNIV GENEVA,DEPT PHYS MAT CONDENSEE,CH-1211 GENEVA 4,SWITZERLAND

来源：

JOURNAL OF APPLIED PHYSICS | 1979年 / 50卷 / 07期

关键词：

D O I：

10.1063/1.326535

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A metastable A15-type structure has been obtained in binary Nb-Si alloys containing 18.8±0.5 at.% Si by very rapid quenching (splat cooling) from the liquid state. Superconducting onset temperatures (Tc) of about 4 K were measured on these samples. The relatively low Tc values can be a result of the nonstoichiometric (Nb-rich) composition, residual antisite disorder, or other types of defect structures. Ternary additions such as Sn, Pt, or Ir seem to improve the stoichiometry of the A15 phase and a Tc of 13 K was obtained for the analyzed composition Nb75Si 16Sn9.

引用

页码：4763 / 4766

页数：4

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