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HREM In-Situ Studies of Electron Irradiation Effects in Oxides

Published online by Cambridge University Press:  26 February 2011

D. E. Luzzi ,
L. D. Marks ,
M. I. Buckett ,
J. W. Strane ,
B. W. Wessels  and
P. C. Stair
D. E. Luzzi
Affiliation:
Center for Surface Radiation Damage Studies and Dept. of Materials ScienceNorthwestern University, Evanston, IL, 60208.
L. D. Marks
Affiliation:
Center for Surface Radiation Damage Studies and Dept. of Materials ScienceNorthwestern University, Evanston, IL, 60208.
M. I. Buckett
Affiliation:
Center for Surface Radiation Damage Studies and Dept. of Materials ScienceNorthwestern University, Evanston, IL, 60208.
J. W. Strane
Affiliation:
Center for Surface Radiation Damage Studies and Dept. of Materials ScienceNorthwestern University, Evanston, IL, 60208.
B. W. Wessels
Affiliation:
Center for Surface Radiation Damage Studies and Dept. of Materials ScienceNorthwestern University, Evanston, IL, 60208.
P. C. Stair
Affiliation:
Dept. of Chemistry, Northwestern University, Evanston, IL, 60208.
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Abstract

High resolution electron microscope (HREM) studies provide the ability to study desorption and sputtering from the perspective of the analysis of the resultant materials, their structure, composition and atomic registry (orientation with respect to the original,material and the irradiation). This is a neglected facet of surface irradiation effects research, yet it is the most important from the technological point of view. In the current study, surface electron irradiation processes in oxides were studied in-situ in a Hitachi H-9000 HREM operated at incident electron energies of 100–300 keV. It was found that a wide range of processes occur in the HREM which are dependent on the energy and flux of the incident electrons and on the material properties. Both ballistic and electronic irradiation damage was observed and the material responses included surface sputtering, amorphisation, chemical disordering, desorption of O and metal surface layer creation, surface roughening and bulk defect creation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 100: Symposium – A Fundamentals of Beam-Solid Interactions and Transient Thermal Processing , 1988 , 635
Copyright
Copyright © Materials Research Society 1988

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References

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