Low-Temperature Synthesis of Superconducting Nanocrystalline
Magnesium diboride (MgB 2 ) is considered a promising material for practical application in superconducting devices, with a transition temperature near 40?K. In the present paper, nanocrystalline MgB 2 with an average particle size of approximately 70?nm is synthesized by reacting LiBH 4 with MgH 2 at temperatures as low as 450 ? C. This synthesis approach successfully bypasses the usage of either elemental boron or toxic diborane gas. The superconductivity of the nanostructures is confirmed by magnetization measurements, showing a superconducting critical temperature of 38.7?K.
- Authors:
-
[1]
; [1]
; [2]
; [2]
; [3]
- Department of Physics, Northern Illinois University, DeKalb, IL 60115, USA, Material Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
- Material Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
- Department of Metallurgical Engineering, University of Utah, Salt Lake City, UT 84112, USA
- Publication Date:
- Grant/Contract Number:
- FG02-06ER46334; AC02-06CH11357
- Type:
- Published Article
- Journal Name:
- Journal of Nanomaterials
- Additional Journal Information:
- Journal Volume: 2010; Related Information: CHORUS Timestamp: 2017-06-19 16:01:59; Journal ID: ISSN 1687-4110
- Publisher:
- Hindawi Publishing Corporation
- Sponsoring Org:
- USDOE
- Country of Publication:
- Egypt
- Language:
- English
- OSTI Identifier:
- 1198278