The surface microstructure of a fracture of an elementary aluminum-oxide filament and the radial structural nonuniformity of an elementary aluminum oxide filament were studied. The thickness of the strong outer shell and the structure of a weaker core of the elementary filament were determined. It was proposed on the basis of tensile rupture tests of elementary filaments with different diameters that the outer shell thickness affects the strength of elementary aluminum oxide filaments.
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We thank Maksimov Vyacheslav Gennad’evich for assistance in the preparation of this article.
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Translated from Steklo i Keramika, No. 2, pp. 13 – 15, February, 2014.
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Medvedev, A.V., Razumeev, K.É. Fracture Surface Microstructure of Elementary Aluminum Oxide Filaments. Glass Ceram 71, 51–53 (2014). https://doi.org/10.1007/s10717-014-9614-1
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DOI: https://doi.org/10.1007/s10717-014-9614-1