Role of Zr on growth kinetics and microstructural evolution of the superconductor V3Ga by the bronze technique. (1st February 2017)

• Record Type: Journal Article
• Authors: Santra, Sangeeta; Paul, Aloke
• Is Part Of: Philosophical magazine letters. Volume 97:Number 2(2017)
• Page Start: 58
• Page End: 65
• Publication Date: 2017-02-01
• Subjects: Intermetallics -- grain-boundary diffusion -- microstructure -- texture -- low-temperature superconductors -- V3Ga; Condensed matter -- Periodicals; Physics -- Periodicals; Solid state physics -- Periodicals; Physique -- Périodiques; 530.41
• DOI: 10.1080/09500839.2016.1274834
• Languages: English
• ISSNs: 0950-0839

Abstract

Abstract: The influence of Zr on the growth of V3 Ga is studied by a diffusion-couple technique mimicking the bronze method for superconductor production. Systematic quantitative evaluation on critical-current-density-dependent metallurgical parameters is addressed. A mixture of V3 Ga and Zr-containing phases develops at the interdiffusion zone. Smaller grains on Zr addition cause higher growth kinetics owing to grain-boundary diffusion of Ga. The grains are oriented randomly irrespective of Zr addition. Refined microstructure, second-phase, and higher growth kinetics suggest a beneficial role of Zr for the better functioning of the superconductor.