Journal of Nanoparticle Research

, Volume 5, Issue 5, pp 521–528

Synthesis and Characteristics of Ultra-Fine Superconducting Powders in the Nb–N, Nb–N–C, Nb–Ti–N–C systems

  • V.N. Troitskiy
  • I.A. Domashnev
  • E.N. Kurkin
  • O.M. Grebtsova
  • V.I. Berestenko
  • I.L. Balikhin
  • S.V. Gurov
Article

DOI: 10.1023/B:NANO.0000006072.30306.1f

Cite this article as:
Troitskiy, V., Domashnev, I., Kurkin, E. et al. Journal of Nanoparticle Research (2003) 5: 521. doi:10.1023/B:NANO.0000006072.30306.1f

Abstract

The single phase powders of NbN, NbN1-yCy, Nb1-xTixN1-yCy with a mean particle size of 10–70nm were prepared in the nitrogen plasma flow of a microwave discharge at a hydrogen reduction of NbF5 only, or in a mixture with C5H12, or with the addition of TiCl4. It was established that the critical magnetic field of ultra-fine niobium–titanium carbonitride powders is about three times higher as compared with bulk samples of the same composition. The critical magnetic field ran up to 55T for ultra-fine powders with the optimal composition Nb0.8Ti0.2N0.8C0.2. This material may be interesting for the technical superconductivity in the helium temperature range.

niobium nitride niobium carbonitride niobium and titanium carbonitride plasma-chemical synthesis superconductivity ultra-fine powders 

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • V.N. Troitskiy
    • 1
  • I.A. Domashnev
    • 1
  • E.N. Kurkin
    • 1
  • O.M. Grebtsova
    • 1
  • V.I. Berestenko
    • 1
  • I.L. Balikhin
    • 1
  • S.V. Gurov
    • 1
  1. 1.Institute of Problems of Chemical Physics, Russian Academy of Sciences, Russian Federation, Moscow RegionChernogolovkaRussia