Electron Irradiation Damage in Stabilized Cubic Zirconia

Abstract:

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We report the formation of anomalous defect clusters in yttria stabilized zirconia (YSZ: 13 mol% Y2O3-ZrO2), which are a primary candidate for inert matrix fuels. Electron irradiation with 100 to 1000 keV is found to induce characteristic defect clusters. The defect clusters show strong black/black lobes contrast and multiply dislocations when the defect clusters grow to a critical diameter of 1.0-1.5 µm. Our analysis with transmission electron microscopy and numerical calculations lead to a conclusion that these defect clusters are charged oxygen platelets formed by the selective displacements of oxygen sublattice.

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

1393-1396

DOI:

10.4028/www.scientific.net/MSF.475-479.1393

Citation:

K. Yasuda et al., "Electron Irradiation Damage in Stabilized Cubic Zirconia", Materials Science Forum, Vols. 475-479, pp. 1393-1396, 2005

Online since:

January 2005

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$35.00

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