Nature of fractures in pyrocerams

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 1980 English Publisher:Springer Science and Business Media LLCJournal:Strength of Materials, volume 12, pages 353-356 (issn: 0039-2316, eissn: 1573-9325,

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Authors: A. M. Raikhel'; V. N. Likhtenshtein; O. A. Nepomnyashchii; L. G. Ivchenko;

doi: 10.1007/bf01129089

Nature of fractures in pyrocerams

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Abstract

1. The completely rough fracture surface of pyroceram 4 indicates that the surface and the bulk of this material have equal strength. This is confirmed by the equal defectiveness of the surface and of the fracture of pyroceram 4. 2. The fracture surface of pyrocerams 1–3 has several zones differing in roughness and defectiveness; this is associated with the process of propagation of the fracture. 3. The dependence of bending strength on the area of the mirror zone is fairly well described by the expression σtr4¯S = Cs, and in that case the variation coefficient of CS does not exceed 16–20%.

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