Influence of Chromium and Titanium Oxide Dopants on the Real Structure and the Mechanical Properties of Corundum Single Crystals
作者： T. Gościńska , J. Auleytner
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摘要: The real structure and the mechanical properties of pure doped corundum single crystals have been investigated. were obtained by Verneuil-method. results allow to propose two different models concerning influence chromium titanium oxide on crystals. Optimum concentration impurities was approximately determined, from which with higher hardness can be obtained. It stated that some concentrations made more fragile without plastically changes in region individual mosaic blocks. Es wurden Untersuchungen der Defektstruktur und mechanischen Eigenschaften von reinen Korundeinkristallen mit Beimischungen Chrom Titanoxid angestellt. Die erhaltenen Untersuchungsergebnisse erlauben es, zwei verschiedene Modelle des Einflusses auf die vorzustellen.
sci-hub.se 参考文章(19)
D. J. Barber, Nancy J. Tighe, Electron microscopy and diffraction of synthetic corundum crystals Philosophical Magazine. ,vol. 14, pp. 531- 544 ,(1966) , 10.1080/14786436608211949
E. J. Duwell, H. C. Butzke, Microscopical Observations of Wear Surfaces on Sapphire Journal of Applied Physics. ,vol. 35, pp. 3385- 3390 ,(1964) , 10.1063/1.1713226
D. L. STEPHENS, W. J. ALFORD, Dislocation Structures in Single‐Crystal Al2O3 Journal of the American Ceramic Society. ,vol. 47, pp. 81- 86 ,(1964) , 10.1111/J.1151-2916.1964.TB15660.X
Ken-ichi Shiroki, Influence of Thermal Conditions during the Course of Crystal Growth on the Qualities of a Ruby Single Crystal Japanese Journal of Applied Physics. ,vol. 8, pp. 1082- 1090 ,(1969) , 10.1143/JJAP.8.1082
M.L Kronberg, Plastic deformation of single crystals of sapphire: Basal slip and twinning Acta Metallurgica. ,vol. 5, pp. 507- 524 ,(1957) , 10.1016/0001-6160(57)90090-1
BERNARD J. HOCKEY, Plastic Deformation of Aluminum Oxide by Indentation and Abrasion Journal of the American Ceramic Society. ,vol. 54, pp. 223- 231 ,(1971) , 10.1111/J.1151-2916.1971.TB12277.X
D. J. Barber, Nancy J. Tighe, Electron microscopy and diffraction of synthetic corundum crystals I. Pure aluminium oxide grown by the verneuil process Philosophical Magazine. ,vol. 11, pp. 495- 512 ,(1965) , 10.1080/14786436508224237
R. J. Bratton, Precipitation and Hardening Behavior of Czochralski Star Sapphire Journal of Applied Physics. ,vol. 42, pp. 211- 216 ,(1971) , 10.1063/1.1659569
A. H. Heuer, Deformation twinning in corundum Philosophical Magazine. ,vol. 13, pp. 379- 393 ,(1966) , 10.1080/14786436608212616
ROBERT SCHEUPLEIN, PETER GIBBS, Surface Structure in Corundum: II, Dislocation Structure and Fracture of Deformed Single Crystals Journal of the American Ceramic Society. ,vol. 45, pp. 439- 452 ,(1962) , 10.1111/J.1151-2916.1962.TB11190.X