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Indentation analysis: applications in the strength and wear of brittle materials
Author(s) -
Lawn B. R.,
Hockey B. J.,
Richter H.
Publication year - 1983
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1983.tb04550.x
Subject(s) - indentation , brittleness , micromechanics , materials science , plasticity , residual stress , fracture (geology) , composite material , ceramic , brittle fracture , nanoindentation , composite number
SUMMARY Some recent developments in the principles and applications of indentation fracture in brittle materials are surveyed. Attention is focused on ‘sharp’ indenters, for which precursor ‘plasticity’ is an essential element of the crack development. A major consequence of this plasticity is a residual contact stress field which exerts a dominant influence on ensuing mechanical behaviour. This influence is discussed in relation to strength and wear properties of brittle ceramics. Emphasis is placed on the advantages of the indentation method as a means of producing controlled cracks for evaluating material fracture parameters and for gaining insight into flaw micromechanics.