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Improvement in the Specific Strength by Arranging Closed Pores in Fully Densified Zirconia Ceramics
Author(s) -
Kishimoto Akira,
Hanao Masaaki,
Hayashi Hidetaka
Publication year - 2009
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200800259
Subject(s) - materials science , cubic zirconia , ceramic , composite material , mechanical strength
Superplastic‐foamed porous ceramics containing numerous closed pores were fabricated. The bending strength of the fabricated ceramics with the smallest pores was close to half that of fully dense ones, even with a porosity of 27%. The smaller pores were introduced selectively between top and bottom surfaces. The resultant dense/porous/dense layered ceramics had a specific mechanical strength greater than that of monolithic dense ceramics.