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- W3036715950 abstract "Sapphire (α-Al 2 O 3 ) is widely used in industry and research as a high temperature insulator, a substrate for growing thin films and carrier materials in catalysis. It is important to understand the surface properties of the substrate materials for thin film growth and for metal support interactions. Recently RHEED (reflection high energy electron diffraction) and REM (reflection electron microscopy) techniques have been used to characterize surface properties of sapphire annealed in air or in oxygen. The presentpaper reports some results of high resolution REM imaging of lattice fringes of reconstructed sapphire surface. The sample preparation procedure was reported elsewhere. The results presented here were obtained from a sample annealed in pure oxygen at 1650° C for 72 h. The high resolution REM observations were done in a Philips 400T transmission electron microscope operated at 120 kV with a vacuum pressure about 10 -7 Torr." @default.
- W3036715950 created "2020-06-25" @default.
- W3036715950 creator A5077883310 @default.
- W3036715950 date "1991-08-01" @default.
- W3036715950 modified "2023-09-27" @default.
- W3036715950 title "High-resolution REM of the reconstruction of sapphire surfaces" @default.
- W3036715950 cites W1986779207 @default.
- W3036715950 cites W2077776473 @default.
- W3036715950 doi "https://doi.org/10.1017/s0424820100087537" @default.
- W3036715950 hasPublicationYear "1991" @default.
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