Nb-Si A15 compounds produced by liquid quenching
- 1 July 1979
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 50 (7) , 4763-4766
- https://doi.org/10.1063/1.326535
Abstract
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 Nb75Si16Sn9.This publication has 20 references indexed in Scilit:
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