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Strength and Young's Modulus Behavior of a Partially Sintered Porous Alumina
Author(s) -
Nanjangud Savitha C.,
Brezny Rasto,
Green David J.
Publication year - 1995
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.1151-2916.1995.tb08401.x
Subject(s) - materials science , weibull modulus , modulus , composite material , porosity , sintering , weibull distribution , young's modulus , aggregate modulus , work (physics) , elastic modulus , flexural strength , dynamic modulus , dynamic mechanical analysis , thermodynamics , mathematics , statistics , polymer , physics
The strength of alumina materials that had been subjected to varying degrees of densification was determined. Significant increases in strength were obtained for these materials even when there was minimal densification. For the most porous materials, the Weibull modulus values were similar but showed a significant increase for materials that were close to the theoretical density. Young's modulus data were found to be similar to previous work, in that significant increases occur during the initial stage of sintering, showing a strong correlation with the strength data. A simple modi fication to a previous theory allowed the Young's modulus data to be fitted with excellent accuracy.