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Article
Nano ZrO2 particles in nanocrystalline Fe–14Cr–1.5Zr Alloy Powders
Journal of Nuclear Materials (2014)
  • W. Z. Xu, North Carolina State University
  • L. L. Li, North Carolina State University
  • Mostafa Saber, Portland State University
  • C. C. Koch, North Carolina State University
  • Y. T. Zhu, North Carolina State University
  • Ronald O. Scattergood
Abstract
Here we report on the formation of nano ZrO2 particles in Fe–14Cr–1.5Zr alloy powders synthesized by mechanical alloying. The nano ZrO2 particles were found uniformly dispersed in the ferritic matrix powders with an average size of about 3.7 nm, which rendered the alloy powders so stable that it retained nanocrystalline structure after annealing at 900 °C for 1 h. The ZrO2 nanoparticles have a tetragonal crystal structure and the following orientation relationship with the matrix: (0 0 2)ZrO2//(0 0 2)Matrix and [0 1 0]ZrO2//[1 2 0]Matrix. The size and dispersion of the ZrO2 particles are comparable to those of Y–Ti–O enriched oxides reported in irradiation-resistant ODS alloys. This suggests a potential application of the new alloy powders for nuclear energy applications.
Keywords
  • Nanoparticles -- Analysis
Publication Date
September, 2014
DOI
10.1016/j.jnucmat.2014.05.067
Publisher Statement
Copyright (2014) Elsevier

*At the time of publication, Mostafa Saber was affiliated with North Carolina State University
Citation Information
W. Z. Xu, L. L. Li, Mostafa Saber, C. C. Koch, et al.. "Nano ZrO2 particles in nanocrystalline Fe–14Cr–1.5Zr Alloy Powders" Journal of Nuclear Materials Vol. 452 Iss. 1-3 (2014) p. 434 - 439
Available at: http://works.bepress.com/mostafa-saber/7/