Fracture Surface Development Coefficient and Sialon Ceramics’ Bending Strength

Sebastian Stach; Stanisław Roskosz; Jerzy Cybo; Jan Cwajna

doi:10.4028/www.scientific.net/KEM.409.279

Paper Titles

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The Influence of Corrosion in an Aqueous Solution of NaCl on Fracture and Strength of Various Structural Ceramics
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Qualifying Glass Surfaces by Scratch Test with Integrated Image Processing
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Influence of Internal Architectures on the Fracture Response of LTCC Components
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Fracture Surface Development Coefficient and Sialon Ceramics’ Bending Strength
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Corrosion of Alumina Ceramics in an Aqueous Solution of Sodium Chloride
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Fractography of Dense Metal-Like Carbides Sintered with Carbon
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Crack Profile under Vickers Indents
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 409Fracture Surface Development Coefficient and...

Fracture Surface Development Coefficient and Sialon Ceramics’ Bending Strength

Abstract:

Resistance to brittle cracking is one of the most important functional properties of sialon ceramics. Evaluation of the resistance requires an analysis of decohesion processes occuring in the material. Aiming at a comprehensive description of the morphology of typically brittle fractures, a quantitative characterization was made using different methods and techniques, regarding the surface of fractures formed in a three-point bending test. By using the parameter Sdr, determined via the surface stereometry method, the fracture surface development coefficient, RS, typical for fractography, was calculated. Analysis of the research results indicates a proportional relation between parameter RS and the sialon ceramics’ bending strength.

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Periodical:

Key Engineering Materials (Volume 409)

Pages:

279-282

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.409.279

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Online since:

March 2009

Authors:

Sebastian Stach, Stanisław Roskosz, Jerzy Cybo, Jan Cwajna

Keywords:

Bend Strength, Fractography, Fracture, Surface Development, Surface Stereometry

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