Journal
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
Volume 15, Issue 4, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssr.202000563
Keywords
mechanical alloying; Sn doping; superconductivity; transmission electron microscopy
Funding
- National Natural Science Foundation of China [51822404, 51804218]
- Natural Science Foundation of Tianjin [18JCYBJC17900]
- Science and Technology Program of Tianjin [19YFZCGX00790, 18YFZCGX00070]
- King Saud University, Riyadh, Saudi Arabia [RSP-2021/6]
Ask authors/readers for more resources
The Nb-3(Al1-xSnx) superconductor with enhanced critical current density (J(c)) was prepared by mechanical alloying and low-temperature sintering. It was found that dispersed nanosized Nb2Al particles serve as flux pinning centers in Nb-3(Al1-xSnx), leading to an increase in flux pinning force and enhancement of J(c) performance.
The Nb-3(Al1-xSnx) superconductor with enhanced critical current density (J(c)) is prepared by the process of mechanical alloying (MA) and subsequent low-temperature sintering and the enhancement mechanism of J(c) in Nb-3(Al1-xSnx) is discussed. The analysis of the flux pinning force implies that there is an additional pinning mechanism apart from grain boundary pinning in Nb-3(Al1-xSnx). The existence of dispersed Nb2Al nanoparticles (<30 nm) in Nb-3(Al1-xSnx) is confirmed by microstructure observation. These nanosized Nb2Al particles can serve as flux pinning centers, which leads to the increase of the flux pinning force as well as the enhancement of Nb-3(Al1-xSnx)'s J(c) performance.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
