<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">The indentation load-size effect (ISE) in Vickers hardness of Al2O3 and Al2O3 + SiC nanocomposites has been investigated and analysed using Meyer law, proportional specimen resistance (PSR) model and modified proportional specimen resistance (MPSR) model. The strongest ISE was found for alumina. Both the PSR and MPSR models described the ISE well, but the MPSR model resulted in slightly lower true hardness values for all materials investigated. No evidence of the effect of machining stresses on the ISE has been found.</abstract>

The indentation load-size effect (ISE) in Vickers hardness of Al2O3 and Al2O3 + SiC nanocomposites has been investigated and analysed using Meyer law, proportional specimen resistance (PSR) model and modified proportional specimen resistance (MPSR) model. The strongest ISE was found for alumina. Both the PSR and MPSR models described the ISE well, but the MPSR model resulted in slightly lower true hardness values for all materials investigated. No evidence of the effect of machining stresses on the ISE has been found.

Indentation Load-Size Effect in Al2O3 — SIC Nanocomposites

Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia

Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom

Journal of Electrical Engineering

Indentation Load-Size Effect in AlO — SIC Nanocomposites

The indentation load-size effect (ISE) in Vickers hardness of Al2O3 and Al2O3 + SiC nanocomposites has been investigated and analysed using Meyer law,...

Indentation Load-Size Effect in Al₂O₃ — SIC Nanocomposites

Publié en ligne: 07 juin 2011

Pages: 305 - 307

DOI: https://doi.org/10.2478/v10187-011-0047-y

Mots clés
Al, SiC, hardness, indentation load-size effect

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