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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bermejo, Raúl
Montanuniversität Leoben
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (38/38 displayed)
- 20243D-printed alumina-based ceramics with spatially resolved porositycitations
- 2024Effect of airborne particle abrasion and regeneration firing on the strength of 3D-printed 3Y and 5Y zirconia ceramicscitations
- 2023The effect of liquid phase chemistry on the densification and strength of cold sintered ZnOcitations
- 2023Stereolithographic 3D Printing of Ceramics: Challenges and Opportunities for Structural Integritycitations
- 2023Highly textured 3D-printed translucent alumina through pressure-assisted sinteringcitations
- 2023Press-compaction-assisted binder jetting of textured ceramicscitations
- 2023Effect of airborne particle abrasion and regeneration firing on the strength of 3D-printed 3Y and 5Y zirconia ceramicscitations
- 2023High-temperature fracture behaviour of layered alumina ceramics with textured microstructurecitations
- 2022Effect of airborne-particle abrasion of yttria-containing zirconia dental ceramics on mechanical properties before and after regeneration firingcitations
- 2022Contact damage tolerance of alumina‐based layered ceramics with tailored microstructurescitations
- 2021Fabrication of 3D metal-ceramic (Al-AlN) architectures using laser-powder bed fusion processcitations
- 2021Additive manufacturing of highly textured alumina ceramicscitations
- 2021Effects of acid leaching treatment of soda lime silicate glass on crack initiation and fracturecitations
- 2021Additive manufacturing of high-strength alumina through a multi-material approachcitations
- 2020Influence of the Test Configuration and Temperature on the Mechanical Behaviour of WC-Cocitations
- 2020Mechanical properties of zirconia ceramics biomimetically coated with calcium deficient hydroxyapatitecitations
- 2020Microstructure, ionic conductivity and mechanical properties of tape-cast Li1.5Al0.5Ti1.5P3O12 electrolyte sheetscitations
- 2020Strength of additive manufactured aluminacitations
- 2020Design of damage tolerant and crack-free layered ceramics with textured microstructurecitations
- 2019Mechanical strength of cold-sintered zinc oxide under biaxial bendingcitations
- 2019Strength limits in mesoscaled 3Y-TZP ceramics for micro-surgical instrumentscitations
- 2018Mechanical characterization of Ti(C,N)-based cermets fabricated through different colloidal processing routescitations
- 2018What is the tensile strength of a ceramic to be used in numerical models for predicting crack initiation?citations
- 2018Influence of the colloidal processing route on the mechanical properties of Ti(C,N)-based cermets
- 2017Fracture of advanced ceramics and brittle components
- 2017“Toward seashells under stress”citations
- 2017Effect of metallization on the strength and fracture behaviour of functional co-fired multilayer ceramicscitations
- 2017Novel colloidal approach for the microstructural improvement in Ti(C,N)/FeNi cermetscitations
- 2016Hierarchical Architectures to Enhance Structural and Functional Properties of Brittle Materialscitations
- 2016Assessment of crack-related problems in layered ceramics using the finite fracture mechanics and coupled stress-energy criterioncitations
- 2016Residual lifetime determination of low temperature co-fired ceramics
- 2014On the determination of the stress-free temperature for alumina–zirconia multilayer structurescitations
- 2013Influence of the residual stresses on the crack deflection in ceramic laminates
- 2012Mechanical properties of low temperature co-fired ceramics
- 2010Optimal strength and fracture toughness of damage tolerant multilayer ceramics
- 2010Fracture behaviour of low temperature cofired ceramics under biaxial loading
- 2009Mechanical behaviour of low temperature co-fired ceramics under biaxial loading
- 2007High-temperature mechanical behaviour of flaw tolerant alumina–zirconia multilayered ceramicscitations
Places of action
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document
Optimal strength and fracture toughness of damage tolerant multilayer ceramics
Abstract
<p>The size and type processing and/or machining defects in monolithic ceramic materials determine the mechanical strength of components, thus yielding a statistically variable brittle fracture which limits their use for load-bearing applications. Layered ceramics have been proposed as an alternative choice for the design of structural ceramics with improved fracture toughness and reliability. The use of tailored residual compressive stresses in the layers is the key parameter to improve the strength as well as the crack resistance of the material during crack growth, yielding in some particular cases a minimum mechanical resistance (threshold strength below which the material does not fail. In this work two multilayer ceramics based on the alumina-zirconia system, designed with external (ECS-laminatesand internal (ICS-laminatescompressive stresses, have been investigated using a fracture mechanics and weight function analysis. An optimal multilayer architecture that maximises material toughness and strength has been found for each design as a function of geometry and material properties. From a flaw tolerant viewpoint, ECS-laminates are suitable for ceramic components which contain small cracks or flaws. On the other hand, the existence of large cracks or defects suggests the use of ICS-laminates to attain a more reliable mechanical response. This analysis can be extended to other multilayer ceramic systems.</p>