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Preparation of high-strength (Mg,Y)-partially stabilised zirconia by hot isostatic pressing

Meschke, Frank and Claussen, Nils and De Portu, G. and Rödel, Jürgen (1997):
Preparation of high-strength (Mg,Y)-partially stabilised zirconia by hot isostatic pressing.
In: Journal of the European Ceramic Society, pp. 843-850, 17, (6), [Online-Edition: http://dx.doi.org/10.1016/S0955-2219(96)00136-7],
[Article]

Abstract

Fine-grained (Mg, Y)-PSZs containing small amounts of spinel as a second phase have been produced by pressureless sintering and hot isostatic pressing. Their mechanical proper ties have been optimised by judicious adjustment of processing parameters such as sintering temperature, cooling Pare and holding time of eutectoid heat treatments. Hot isostatic pressing reduces the internal defect size in comparison with conventional sintering. Without exploiting transformation toughening, high strength values of more than 700 MPa are obtained which rise to about 900 MPa after eutectoid ageing. Failure mechanisms are discussed in terms of defect size, defect type and R-curve behaviour. (C) 1997 Elsevier Science Limited.

Item Type: Article
Erschienen: 1997
Creators: Meschke, Frank and Claussen, Nils and De Portu, G. and Rödel, Jürgen
Title: Preparation of high-strength (Mg,Y)-partially stabilised zirconia by hot isostatic pressing
Language: English
Abstract:

Fine-grained (Mg, Y)-PSZs containing small amounts of spinel as a second phase have been produced by pressureless sintering and hot isostatic pressing. Their mechanical proper ties have been optimised by judicious adjustment of processing parameters such as sintering temperature, cooling Pare and holding time of eutectoid heat treatments. Hot isostatic pressing reduces the internal defect size in comparison with conventional sintering. Without exploiting transformation toughening, high strength values of more than 700 MPa are obtained which rise to about 900 MPa after eutectoid ageing. Failure mechanisms are discussed in terms of defect size, defect type and R-curve behaviour. (C) 1997 Elsevier Science Limited.

Journal or Publication Title: Journal of the European Ceramic Society
Volume: 17
Number: 6
Uncontrolled Keywords: TRANSFORMATION-TOUGHENED ZIRCONIA; FRACTURE-TOUGHNESS; CYCLIC FATIGUE; CERAMICS; BEHAVIOR; ALLOYS; ZRO2
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
11 Department of Materials and Earth Sciences > Fachbereich Materialwissenschaft (1999 aufgegangen in 11 Fachbereich Material- und Geowissenschaften)
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 19 Nov 2008 16:04
Official URL: http://dx.doi.org/10.1016/S0955-2219(96)00136-7
Identification Number: doi:10.1016/S0955-2219(96)00136-7
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