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| Naji, M. |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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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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| 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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Kalabukhov, S.
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Topics
Publications (5/5 displayed)
- 2017Effect of grain size on the static and dynamic mechanical properties of magnesium aluminate spinel (MgAl2O4)citations
- 2017Low temperature fabrication of transparent magnesium aluiminate spinel by high pressure spark plasma sinteringcitations
- 2016Spark plasma sintering of Ti1-xAlxN nano-powders synthesized by high-energy ball millingcitations
- 2014High-pressure spark plasma sintering (SPS) of transparent polycrystalline magnesium aluminate spinel (PMAS)citations
- 2014Mechanical, thermal and optical properties of the SPS-processed polycrystalline Nd:YAGcitations
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article
High-pressure spark plasma sintering (SPS) of transparent polycrystalline magnesium aluminate spinel (PMAS)
Abstract
<p>A high pressure SPS (spark plasma sintering) process was applied for consolidation of un-doped polycrystalline magnesium aluminate spinel. This approach allows fabricating a fully dense transparent ceramic with submicron grain size and high hardness values at a relatively low temperature (1200. °C). The light transmittance of the specimens increases with increasing applied pressure, while the hardness gradually decreases. The optimal combination of properties was achieved after sintering at 1200. °C at a heating rate of 5°/min, a holding time of 15. min and an applied pressure of 350-400. MPa. The specimens display the level of transmittance in the visible wavelengths and hardness values comparable with the best results reported in the literature for the two-stage fabrication process (pressureless sintering and hot isostatic pressing).</p>