Toughness enhancement of Ce-TZP by annealing in argon

Annealing of air-sintered fully dense Ce-TZP ceramics in argon resulted in the formation of a toughness gradient in the component, ranging from 6 MPa m 1/2 in the core up to 16 MPa m 1/2 at the edge. The increased toughness is explained in terms of the reduction and grain boundary segregation of cer...

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Bibliographic Details
Published in:Scripta materialia 2004-03, Vol.50 (5), p.679-683
Main Authors: Vleugels, J., Zhao, C., Van Der Biest, O.
Format: Article
Language:English
Subjects:
Annealing
Ceramics
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure
Fatigue, embrittlement, and fracture
Materials science
Microstructure
Physics
Segregation
Toughness
Treatment of materials and its effects on microstructure and properties
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Summary:Annealing of air-sintered fully dense Ce-TZP ceramics in argon resulted in the formation of a toughness gradient in the component, ranging from 6 MPa m 1/2 in the core up to 16 MPa m 1/2 at the edge. The increased toughness is explained in terms of the reduction and grain boundary segregation of cerium and the change in grain morphology.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2003.11.017