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MECHANICAL PERFORMANCE OF QUARTZ‐TEMPERED CERAMICS: PART I, STRENGTH AND TOUGHNESS *
Author(s) -
KILIKOGLOU V.,
VEKINIS G.,
MANIATIS Y.,
DAY P. M.
Publication year - 1998
Publication title -
archaeometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 67
eISSN - 1475-4754
pISSN - 0003-813X
DOI - 10.1111/j.1475-4754.1998.tb00837.x
Subject(s) - fracture toughness , quartz , materials science , composite material , ceramic , porosity , toughness , volume fraction , dissipation , modulus , fracture (geology) , physics , thermodynamics
The effect of quartz temper on the physical and mechanical properties of clay ceramics and the elucidation of the underlying mechanisms that are responsible for these effects are presented here. Characteristics studied included bulk density, open and closed porosity, density of impervious portion and fracture morphology. Mechanical behaviour was studied by measuring energy dissipation during fracture, Young's modulus, initial fracture toughness and strength in flexure. The significant increase in toughness with quartz volume fraction is explained by the development of a model that accounts for the crack distribution around the grains. The archaeological implications of the work are discussed on the basis of all the parameters that might affect the potter's choices of raw materials.