Ultrarapid microwave synthesis of superconducting refractory carbides

Vallance, S.R., Round, D.M., Ritter, C., Cussen, E.J., Kingman, S. and Gregory, D.H. (2009) Ultrarapid microwave synthesis of superconducting refractory carbides. Advanced Materials, 21(44), 4502-+. (doi:10.1002/adma.200900968)

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Abstract

Nb1-xTaxC Carbides can be synthesized by high power MW methods in less than 30s. In situ and ex situ techniques probing changes in temperature and dielectric properties with time demonstrate that the reactions self-terminate as the loss tangent of the materials decreases. The resulting carbides carbon deficient and superconducting; T-c correlates linearly to unit cell volume, reaching a maximum at NbC.

Item Type:Articles
Keywords:Carbides, carbon, carbon content, cell, in-situ, lattice parameter, microwave synthesis, NBC, niobium carbide, TAC, tantalum carbide, temperature, unit
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Gregory, Professor Duncan
Authors: Vallance, S.R., Round, D.M., Ritter, C., Cussen, E.J., Kingman, S., and Gregory, D.H.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Advanced Materials
Publisher:Wiley - V C H Verlag GmbH & Co. KGaA
ISSN:0935-9648
ISSN (Online):1521-4095

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