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Reliability of alumina ceramics. 2: Effect of processing

Seidel, Jürgen and Claussen, Nils and Rödel, Jürgen :
Reliability of alumina ceramics. 2: Effect of processing.
[Online-Edition: http://dx.doi.org/10.1016/S0955-2219(96)00084-2]
In: Journal of the European Ceramic Society, 17 (5) pp. 727-733.
[Article] , (1997)

Official URL: http://dx.doi.org/10.1016/S0955-2219(96)00084-2

Abstract

In this paper an attempt is made to review the mechanical properties that can currently be achieved with the best alumina powders available by utilizing a series of simple processing strategies and surface preparation techniques. The processing techniques include cold-isostatic pressing, slip casting, settling and centrifuging as well as hot-isostatic pressing of as-sintered alumina samples. The surface preparation techniques include grinding and polishing as well as annealing and grinding in the green state. While the fracture strength can be increased from 460 MPa for cold-isostatic pressing to 925 MPa for a centrifuged and cast alumina slip, the Weibull modulus remained between 8 and 12 for most processing strategies. (C) 1997 Elsevier Science Limited. All rights reserved.

Item Type: Article
Erschienen: 1997
Creators: Seidel, Jürgen and Claussen, Nils and Rödel, Jürgen
Title: Reliability of alumina ceramics. 2: Effect of processing
Language: English
Abstract:

In this paper an attempt is made to review the mechanical properties that can currently be achieved with the best alumina powders available by utilizing a series of simple processing strategies and surface preparation techniques. The processing techniques include cold-isostatic pressing, slip casting, settling and centrifuging as well as hot-isostatic pressing of as-sintered alumina samples. The surface preparation techniques include grinding and polishing as well as annealing and grinding in the green state. While the fracture strength can be increased from 460 MPa for cold-isostatic pressing to 925 MPa for a centrifuged and cast alumina slip, the Weibull modulus remained between 8 and 12 for most processing strategies. (C) 1997 Elsevier Science Limited. All rights reserved.

Journal or Publication Title: Journal of the European Ceramic Society
Volume: 17
Number: 5
Uncontrolled Keywords: BIAXIAL FLEXURE; GRAIN-SIZE
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)00084-2
Identification Number: doi:10.1016/S0955-2219(96)00084-2
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