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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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Llanes, Luis
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Polymer-Infiltrated Ceramic Network Produced by Direct Ink Writing: The Effects of Manufacturing Design on Mechanical Propertiescitations
- 20243D printed porous ceramic implants infiltrated with biodegradable biopolymer composites for improved mechanical and biofunctional behaviour
- 2023Testing length-scale considerations in mechanical characterization of WC-Co hardmetal produced via binder jetting 3D printingcitations
- 2023Oxidation And Wear Behavior Of Co-Free Cemented Carbides Using Ti(C,N) And WC As Ceramic Phases
- 2022Critical Assessment of Two-Dimensional Methods for the Microstructural Characterization of Cemented Carbides
- 2022Mechanical Performance of AlCrSiN and AlTiSiN Coatings on Inconel and Steel Substrates after Thermal Treatmentscitations
- 2022Silver Nanoparticles for Conductive Inks: From Synthesis and Ink Formulation to Their Use in Printing Technologiescitations
- 2021Assessment of wear micromechanisms on a laser textured cemented carbide tool during abrasive-like machining by FIB/FESEM
- 2020Influence of the Test Configuration and Temperature on the Mechanical Behaviour of WC-Cocitations
- 2019Micromechanical investigations of CVD coated WC-Co cemented carbide by micropillar compression
- 2018Wear Characterization of Cemented Carbides (WC–CoNi) Processed by Laser Surface Texturing under Abrasive Machining Conditions
- 2018Investigations on micro-mechanical properties of polycrystalline Ti(C,N) and Zr(C,N) coatings
- 2018Influence of Laser Pulse Number on the Ablation of Cemented Tungsten Carbides (WC-CoNi) with Different Grain Size
- 2016Contact damage and residual strength in polycrystalline diamond (PCD)citations
- 2015Numerical simulation of fatigue crack propagation in WC-Co hardmetal
- 2015Numerical simulation of fatigue crack propagation in WC-Co hardmetal
- 2015Fracture toughness of cemented carbides : Testing method andmicrostructural effectscitations
Places of action
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article
Contact damage and residual strength in polycrystalline diamond (PCD)
Abstract
he tolerance to contact damage of polycrystalline diamond (PCD) composites is investigated. Three different PCD grades are considered. Contact damage is extrinsically introduced by spherical indentation techniques, an approach well-established to evaluate damage tolerance issues in other hard materials. Such damage is induced on the surface of polished specimens, under both monotonic and cyclic loading conditions, and is characterized by optical and scanning electron microscopy. Residual strength is used as discriminative parameter for evaluation of damage tolerance. Hence, non-indented (reference) and indented specimens are fractured by means of biaxial ball-on-three-ball flexure testing. Results show that tolerance to contact damage is dependent on the microstructural characteristics of each PCD grade. Hence, although fine PCD grade exhibits the highest reference strength, corresponding indented specimens show pronounced fracture resistance decay for relatively high applied loads or number of cycles. On the other hand, the bimodal and coarse PCD variants are found to be more tolerant to contact damage, i.e. fracture strength shows only slight changes as cracks are introduced. The trends discerned are discussed on the basis of relative discontinuous character and sharpness of the induced damage, as well as effective depth of corresponding cracks, all of them directly dependent on the PCD microstructure assemblage.