NDLI: The Reaction Process of NbAl Interface in Rod-in-Tube Strands

Content Provider	Springer Nature Link
Author	Du, Lupeng Li, Pingyuan Liu, Zhao Cui, Yajing Chen, Yongliang Zhao, Yong Pan, Xifeng Yan, Guo
Copyright Year	2014
Abstract	We investigated the reaction process of NbAl in samples prepared by the rod-in-tube method. Precursor strands were isothermally heat-treated at a very wide temperature range from 800 to 1,400 °C for 48 h. As a result, we obtained NbAl$_{3}$ and NbAl diffusion layers below 1,000 °C; NbAl$_{3}$ and Nb$_{2}$Al at 1,000 to 1,200 °C; and NbAl$_{3}$, Nb$_{2}$Al, and a small amount of nonstoichiometric Nb$_{3}$Al at 1,400 °C. Diffusion or reaction layers were observed clearly by scanning electron microscope for all of the samples mentioned above. Furthermore, nonstoichiometric Nb$_{3}$Al phase can be found only at 1,400 °C through a higher resolution. Additionally, magnetic measurement results also show that the superconducting transition temperature is about 14.8 K only for the sample obtained at 1,400 °C for 48 h.
Starting Page	2029
Ending Page	2033
Page Count	5
File Format	PDF
ISSN	15571939
Journal	Journal of Superconductivity and Novel Magnetism
Volume Number	27
Issue Number	9
e-ISSN	15571947
Language	English
Publisher	Springer US
Publisher Date	2014-06-07
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	NbAl binary system Diffusion reaction Isothermal heat treatment Strongly Correlated Systems, Superconductivity Magnetism, Magnetic Materials Condensed Matter Physics Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Condensed Matter Physics

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