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Improvement in the Specific Strength by Arranging Closed Pores in Fully Densified Zirconia Ceramics

2009; Wiley; Volume: 11; Issue: 1-2 Linguagem: Inglês

10.1002/adem.200800259

1527-2648

Akira Kishimoto, Masaaki Hanao, Hidetaka Hayashi,

Injection Molding Process and Properties

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.