Journal
APPLIED SURFACE SCIENCE
Volume 254, Issue 1, Pages 193-196Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2007.07.028
Keywords
ion implantation; zirconia; crystallization; plasma focus
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In this work preliminary results of amorphous zirconium crystallization using ion beam pulses are presented. Energetic argon- and oxygen-ion beams generated by a plasma focus device were used to promote crystallization on amorphous ZrO2-2.5 mol% Y2O3 film deposited by chemical solution deposition onto silica glass substrate. The films were burnt at 370 degrees C for 1 h in normal atmosphere previous to plasma irradiation. The irradiation was performed by means of successive pulses of ion beams. The evolution of the surface morphology and crystallization was followed by AFM and X-rays diffraction in a grazing incidence asymmetric Bragg geometry (GIAB), respectively. Argon-irradiated films showed highly nucleated cubic zirconia after 10 pulses. On the other hand, oxygen-irradiated films showed a delayed and less extensive cubic nucleation, but a more ordered structure and well-defined grains. (C) 2007 Elsevier B.V. All rights reserved.
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