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Relation of Microindentation Hardness to Glass Composition
Author(s) -
GEOROFF A. N.,
BABCOCK C. L.
Publication year - 1973
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1973.tb12366.x
Subject(s) - knoop hardness test , materials science , indentation hardness , crystallization , mineralogy , mole fraction , chemical composition , oxide , phase (matter) , composition (language) , composite material , analytical chemistry (journal) , microstructure , metallurgy , chemistry , thermodynamics , physics , chromatography , linguistics , philosophy , organic chemistry
Microindentation hardness measurements on Na 2 O‐CaO‐SiO 2 and Na 2 O‐Al 2 O 3 ‐SiO 2 glasses showed that Knoop hardness numbers are linearly related to oxide compositions expressed in mole fraction. Evaluations of the data indicate that these linear relations are unique for each of the primary crystallization phase fields of the glasses studied.