Microstructure and mechanical properties of ZrO2 ceramics toughened by 5–20vol% Ta metallic particles fabricated by pressureless sintering
Source abstract
Abstract
ZrO2-based composites toughened by 5, 10, 15 and 20 vol% lamellar shape Ta metallic particles were made by pressureless sintering. The microstructure and mechanical properties of these novel ceramic-metal composites have been studied. With only 15 vol%, the toughness of ZrO2-Ta composites was increased from 9.1 of monolithic zirconia to 14 MPa m 1/2 and the average bend strength was 700 MPa. Our results have demonstrated that zirconia transformation and ductile phase toughening concepts can get together to enhance the fracture toughness of zirconia-based materials with high strength. © 2013 Elsevier Ltd and Techna Group S.r.l.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Aluminum Alloys Composites Properties
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References (32)
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