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Title: Low-Temperature Synthesis of Superconducting Nanocrystalline MgB 2

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]
  1. Department of Physics, Northern Illinois University, DeKalb, IL 60115, USA, Material Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
  2. Material Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
  3. Department of Metallurgical Engineering, University of Utah, Salt Lake City, UT 84112, USA
Publication Date:
OSTI Identifier:
1198278
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: 2016-08-11 08:12:48; Journal ID: ISSN 1687-4110
Publisher:
Hindawi Publishing Corporation
Sponsoring Org:
USDOE
Country of Publication:
Egypt
Language:
English