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Design of a New Zirconia–Alumina–Ta Micro‐Nanocomposite with Unique Mechanical Properties
Author(s) -
Smirnov Anton,
Bartolomé José F.,
Kurland HeinzDieter,
Grabow Janet,
Müller Frank A.
Publication year - 2016
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/jace.14460
Subject(s) - materials science , nanocomposite , ceramic , composite material , spark plasma sintering , microstructure , cubic zirconia , fracture toughness , flexural strength , fabrication , composite number , toughness , sintering , lamellar structure , medicine , alternative medicine , pathology
2Y‐ TZP /Al 2 O 3 hybrid nanoparticles prepared by CO 2 laser covaporization (Co LAVA ) were wet mixed with biocompatible lamellar Ta metal particles (20 vol%) and consolidated by spark plasma sintering. The microstructure and mechanical properties of this novel ceramic–metal composite have been studied. The achieved results demonstrate that both the homogeneity of the 2Y‐ TZP /Al 2 O 3 nanocomposite matrix and the reinforcement with a micrometer‐sized ductile phase are prerequisites for the successful design and fabrication of ceramic–metal composites with high strength (1300 MPa), enhanced fracture toughness (16 MPa·m 1/2 ), and improved low‐temperature degradation resistance.