Ultrarapid microwave synthesis of superconducting refractory carbides

Simon R. Vallance, Dave M. Round, Clemens Ritter, Edmund J. Cussen, Sam Kingman, Duncan H. Gregory

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Nb1−xTaxC Carbides can be synthesized by high power MW methods in less than 30 s. 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 are carbon deficient and superconducting; Tc correlates linearly to unit cell volume, reaching a maximum at NbC.
LanguageEnglish
Pages4502-4504
Number of pages3
JournalAdvanced Materials
Volume21
Issue number44
Early online date1 Jul 2009
DOIs
Publication statusPublished - 26 Nov 2009

Fingerprint

Refractory materials
Carbides
Microwaves
Dielectric properties
Carbon
Temperature

Keywords

  • carbides
  • microwaves
  • neutron diffraction
  • superconductivity
  • transition metals

Cite this

Vallance, S. R., Round, D. M., Ritter, C., Cussen, E. J., Kingman, S., & Gregory, D. H. (2009). Ultrarapid microwave synthesis of superconducting refractory carbides. Advanced Materials, 21(44), 4502-4504. https://doi.org/10.1002/adma.200900968
Vallance, Simon R. ; Round, Dave M. ; Ritter, Clemens ; Cussen, Edmund J. ; Kingman, Sam ; Gregory, Duncan H. / Ultrarapid microwave synthesis of superconducting refractory carbides. In: Advanced Materials. 2009 ; Vol. 21, No. 44. pp. 4502-4504.
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Vallance, SR, Round, DM, Ritter, C, Cussen, EJ, Kingman, S & Gregory, DH 2009, 'Ultrarapid microwave synthesis of superconducting refractory carbides' Advanced Materials, vol. 21, no. 44, pp. 4502-4504. https://doi.org/10.1002/adma.200900968

Ultrarapid microwave synthesis of superconducting refractory carbides. / Vallance, Simon R.; Round, Dave M.; Ritter, Clemens; Cussen, Edmund J.; Kingman, Sam; Gregory, Duncan H.

In: Advanced Materials, Vol. 21, No. 44, 26.11.2009, p. 4502-4504.

Research output: Contribution to journalArticle

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T1 - Ultrarapid microwave synthesis of superconducting refractory carbides

AU - Vallance, Simon R.

AU - Round, Dave M.

AU - Ritter, Clemens

AU - Cussen, Edmund J.

AU - Kingman, Sam

AU - Gregory, Duncan H.

PY - 2009/11/26

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KW - microwaves

KW - neutron diffraction

KW - superconductivity

KW - transition metals

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M3 - Article

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Vallance SR, Round DM, Ritter C, Cussen EJ, Kingman S, Gregory DH. Ultrarapid microwave synthesis of superconducting refractory carbides. Advanced Materials. 2009 Nov 26;21(44):4502-4504. https://doi.org/10.1002/adma.200900968