Toughening effects quantification in glass matrix composite reinforced by alumina platelets

Kotoul M, Pokluda J, Sandera P, Dlouhy I, Chlup Z, Boccaccini AR (2008)

Publication Type: Journal article

Publication year: 2008

Journal

Acta Materialia Elsevier

Publisher: Elsevier

Pages Range: 2908-2918

Journal Issue: 56

DOI: 10.1016/j.actamat.2008.02.024

Abstract

A borosilicate glass matrix composite containing alumina platelets was considered to investigate toughening mechanisms and crack tip behavior in dispersion reinforced brittle matrix composites. Fracture toughness was determined by applying the chevron notched specimen technique, and fractographic analysis was employed to reveal the active toughening mechanisms with increasing content of reinforcement. A roughness-induced shielding effect has been quantified to prove the relation between fracture toughness and fracture surface roughness. Theoretical calculations of the fracture toughness enhancement based on a modified crack deflection model developed by Faber and Evans, combined with the influence of the increase in Young's modulus, were found to be in good agreement with experimental data. An effect of residual stresses upon toughening of the investigated composite is discussed. © 2008 Acta Materialia Inc.

Authors with CRIS profile

Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Brno University of Technology (BUT) / Vysoké učení technické v Brně (VUT) CZ Czech Republic (CZ) Academy of Sciences of the Czech Republic (ASCR) / Akademie věd České republiky (AVČR) CZ Czech Republic (CZ)

How to cite

APA:

Kotoul, M., Pokluda, J., Sandera, P., Dlouhy, I., Chlup, Z., & Boccaccini, A.R. (2008). Toughening effects quantification in glass matrix composite reinforced by alumina platelets. Acta Materialia, 56, 2908-2918. https://doi.org/10.1016/j.actamat.2008.02.024

MLA:

Kotoul, M., et al. "Toughening effects quantification in glass matrix composite reinforced by alumina platelets." Acta Materialia 56 (2008): 2908-2918.

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