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Effect of spherical pores on the strength of a polycrystalline ceramic

✍ Scribed by Ö. Vardar; I. Finnie; D. R. Biswas; R. M. Fulrath

Publisher
Springer Netherlands
Year
1977
Tongue
English
Weight
776 KB
Volume
13
Category
Article
ISSN
1573-2673

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✦ Synopsis

Bending tests on a ceramic material, lead zirconate-titanate, with varying amounts of porosity, show that the decrease in strength due to spherical pores is much less than would be expected from the stress concentration factor. Using the Weibull probabilistic approach to brittle strength, it is shown that reasonable predictions may be made for the median strength for porosity up to about ten percent.

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