Paper Title:
Nitrogen Diffusion in the Nb-1.0wt%Zr Measured by Mechanical Spectroscopy
  Abstract

The scientific and technological development in the area of new materials contributed to several applications of niobium and its alloys in nuclear power plants as well as in aerospace, aeronautics, automobile and naval industries. This paper presents the interstitial diffusion coefficients of nitrogen in solid solution in the Nb-1.0wt%Zr alloy using internal friction measurements obtained by mechanical spectroscopy, which uses a torsion pendulum operating at an oscillation frequency between 1.0 Hz and 10.0 Hz. The temperature range varies from 300K to 700K, at a heating rate of 1 K/min and vacuum better than 2 x 10-6 Torr. The results showed an increase of the interstitial diffusion coefficient of nitrogen that was correlated with configurational considerations for the octahedral interstitials.

  Info
Periodical
Defect and Diffusion Forum (Volumes 273-276)
Edited by
Andreas Öchsner and Graeme E. Murch
Pages
261-265
DOI
10.4028/www.scientific.net/DDF.273-276.261
Citation
A. C. Souza, C. R. Grandini, O. Florêncio, "Nitrogen Diffusion in the Nb-1.0wt%Zr Measured by Mechanical Spectroscopy", Defect and Diffusion Forum, Vols. 273-276, pp. 261-265, 2008
Online since
February 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Vladimir V. Popov
Abstract:Possibilities of grain-boundary diffusion and segregation studies using nuclear gammaresonance spectroscopy (NGR) are considered. It is...
497
Authors: Sergiy V. Divinski, Boris S. Bokstein
Abstract:Some unresolved problems of grain boundary diffusion – restrictions of Fisher-Gibbs model, refinement of the conditions for B- and C-regimes,...
1
Authors: Renata Abdallah Nogueira, Carlos Roberto Grandini
Abstract:Titanium alloys are favorable implant materials for orthopedic applications, due to their desirable properties such as good corrosion...
702
Authors: Yutaka Yoshida, Yuji Ino, Kiyotaka Tanaka
Chapter 5: Properties and Gettering of Transition Metals in Silicon
Abstract:Based on a series of Mössbauer spectroscopic investigations on Fe impurities in p-type and n-type Si materials, we propose a new model for...
211