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Journal of Materials Science

, Volume 7, Issue 6, pp 701–707 | Cite as

Grain-size dependence of Snoek peaks in niobium

  • M. S. Ahmad
  • Z. C. Szkopiak
Papers

Abstract

The effect of grain size on the oxygen and nitrogen Snoek peaks in niobium has been studied. It has been observed that the conversion factor K given by C = Kδmax, where C is the concentration of oxygen or nitrogen and δmax the height of the corresponding Snoek peak, is concentration independent up to about 0.06 and 0.04 wt % oxygen and nitrogen respectively.

The variation of K with grain size (d) obeys the relationship K = K0 + kKd−1/2, where K0 represents the value of K for an “aggregate of crystals without boundaries” and kK the grain size dependence of K.

Keywords

Oxygen Nitrogen Polymer Grain Size Niobium 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd. 1972

Authors and Affiliations

  • M. S. Ahmad
    • 1
  • Z. C. Szkopiak
    • 1
  1. 1.Department of Metallurgy and Materials TechnologyUniversity of SurreyGuildfordUK

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