| People | Locations | Statistics |
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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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Pham, Duc
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2019Measurement of forces on multi-point forming tools using Fibre Bragg Grating sensorscitations
- 2018Low-cost metal-forming process using an elastic punch and a reconfigurable multi-pin diecitations
- 2017Experimental research and numerical optimisation of multi-point sheet metal forming implementation using a solid elastic cushion system
- 2017A new mixed production cost allocation model for additive manufacturing (MiProCAMAM)citations
- 2016Material microstructure effects in micro-endmilling of Cu99.9Ecitations
- 2015Influence of molecular weight average, degree of crystallinity, and viscosity of different polyamide PA12 powder grades on the microstructures of laser sintered partcitations
- 2014Pre-processing studies for selective laser sintering of glass beads-filled polyamide 12 compositescitations
- 2014Investigation of the Thermal Properties of Different Grades Polyamide 12 (PA12) in Improving Laser Sintering Process (SLS)citations
- 2010Influence of Thermal Treatment on Nanostructured Gold Model Catalystscitations
- 2010Effects of the Nanostructuring of Gold Films upon Their Thermal Stabilitycitations
Places of action
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article
Influence of Thermal Treatment on Nanostructured Gold Model Catalysts
Abstract
We fabricated films of Au onto single crystal alumina (Al2O3(0001)) and nanostructured the surface using a high resolution focused ion beam (FIB) to remove specific regions of the film. The nanostructures consist of lines and orthogonal lines cut into the film, resulting in one- and two-dimensional islands of gold. When these films are heated above 300 degrees C, small nanoparticles of gold form due to the dewetting of the Au film from the alumina surface. The dimensions of these islands are dictated by the nature of the nanopatterning. The isolated islands generally have the smallest nanoparticles after heating, while the unpatterned film has much larger particles. Sintering is reduced within the nanostructured metal domains due to isolation of Au islands from each other. The evaporation rate is higher within these islands, due to the smaller size of nanoparticles and hence the higher effective vapor pressure over the surface (the Kelvin effect).