Design of a New Zirconia–Alumina–Ta Micro‐Nanocomposite with Unique Mechanical Properties. Issue 10 (30th August 2016)

• Record Type: Journal Article
• Authors: Smirnov, Anton; Bartolomé, José F.; Kurland, Heinz‐Dieter; Grabow, Janet; Müller, Frank A.
• Editors: Faber, K.
• Is Part Of: Journal of the American Ceramic Society. Volume 99:Issue 10(2016)
• Page Start: 3205
• Page End: 3209
• Publication Date: 2016-08-30
• Subjects: ceramic–metal systems -- ceramic matrix composites -- mechanical properties -- spark plasma sintering; Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.14460
• Languages: English
• ISSNs: 0002-7820

Abstract

Abstract : 2Y‐TZP/Al2 O3 hybrid nanoparticles prepared by CO2 laser covaporization (CoLAVA) 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/Al2 O3 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.