NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.44 [2006] >
IJPAP Vol.44(06) [June 2006] >

Title: Synthesis of MgB2 from magnesium rich powders
Authors: Rajput, Suchitra
Chaudhary, Sujeet
Kashyap, Subhash C
Keywords: MgB2
Transition Temperature
Issue Date: Jun-2006
Publisher: CSIR
IPC CodeH01L 39/00
Abstract: Superconducting bulk MgB2 samples have been synthesized by employing a modified heat treatment without using any additional process steps generally undertaken in view of the substantial loss of Mg during sintering owing to its high vapour pressure at the processing temperature. Starting with Mg rich powder mixtures having different atomic ratios of Mg:B (as against the nominally required 1:2 ratio), we have obtained superconducting MgB2 samples showing a transition temperature (Tc) in the range 40.4-40.7K when synthesized at sintering temperatures in the range 720-900°C. Typically, a MgB2 sample (Tc = 40.5K) obtained from heat treating Mg and B in the ratio of 2:2 at 870°C for 1h duration exhibited critical current density in excess of 1×107 A/m2 at ≈38K. Our results further show that MgO is not detrimental to superconductivity.
Page(s): 461-467
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.44(06) [June 2006]

Files in This Item:

File Description SizeFormat
IJPAP 44(6) 461-467.pdf180.86 kBAdobe PDFView/Open
 Current Page Visits: 194 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 171221 since 01-Sep-2015  Last updated on 30-Jun-2016Webmaster: