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Crack Deflection in Composites with Very Thin Interlayers
Author(s) -
Winn E. Jenny,
Chen IWei
Publication year - 2000
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.1151-2916.2000.tb01712.x
Subject(s) - materials science , composite material , cubic zirconia , deflection (physics) , sintering , porosity , microstructure , slurry , polymer , pressing , ceramic , physics , optics
Composites with very thin second‐phase interlayers were made by painting zirconia tapes with a slurry that contained alumina and a fugitive polymer. Warm uniaxial pressing was used to produce microstructures that contained either straight or wavy interlayers. Through the use of the fugitive polymer and a carefully selected sintering temperature, porosity was introduced into the second phase. Samples that were tested in bending displayed high strengths (540–580 MPa), whereas examination of polished and fractured test bars revealed crack deflection at weak interlayers.