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Author Sakaguchi, I. ♦ Haneda, H. ♦ Srikanth, V. ♦ Ikegami, T.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ ISOTOPE AND RADIATION SOURCE TECHNOLOGY ♦ ALUMINIUM OXIDES ♦ ATOM TRANSPORT ♦ OXYGEN 18 ♦ DIFFUSION ♦ MAGNESIUM OXIDES ♦ DOPED MATERIALS ♦ SAMPLE PREPARATION ♦ POWDERS ♦ COMPACTING ♦ SINTERING ♦ ISOTOPIC EXCHANGE ♦ ION MICROPROBE ANALYSIS ♦ MASS SPECTROSCOPY
Abstract The volume and grain boundary diffusion of {sup 18}O at 1,673 K and magnesium and calcium distribution in polycrystalline alumina doped with MgO were studied using a resistive anode encoder of secondary ion mass spectrometry (SIMS). The second phase contains magnesium and calcium near the surface. The formation and growth rate on the second phase depends on the grain boundary orientation. The oxygen profile along grain boundary is influenced with the distribution of second phase, and this effect is important near the surface.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-07-01
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 31
Issue Number 7


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