| 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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Salmi, Ari
University of Helsinki
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2023Preventing Formation of Metal Dendrites During Electroplating Using External Ultrasonic Actuatorscitations
- 2023Evaluation of bone growth around bioactive glass S53P4 by scanning acoustic microscopy co-registered with optical interferometry and elemental analysiscitations
- 20234D Scanning Acoustic Microscopy
- 2023Ultrasound-based surface sampling in immersion for mass spectrometrycitations
- 2022Coupling Power Ultrasound into Industrial Pipe Walls
- 2022Preventing Formation of Metal Dendrites During Electroplating Using External Ultrasonic Actuatorscitations
- 2022FEM-based time-reversal technique for an ultrasonic cleaning applicationcitations
- 2022CESAM - Coded excitation scanning acoustic microscopecitations
- 2022Identifying Regions-of-Interest and Extracting Gold from PCBs Using MHz HIFUcitations
- 20224D Scanning Acoustic Microscopy
- 2021CESAM - Coded excitation scanning acoustic microscopecitations
- 2021FEM-based time-reversal enhanced ultrasonic cleaningcitations
- 2019Coded Acoustic Microscopy to Study Wood Mechanics and Developmentcitations
- 2019Digital Eyewearcitations
- 2018Detecting Industrial Fouling by Monotonicity during Ultrasonic Cleaningcitations
- 2013Cyclic impulsive compression loading along the radial and tangential wood directions causes localized fatiguecitations
- 2008Crystallization and shear modulus of a forming biopolymer film determined by in situ x-ray diffraction and ultrasound reflection methodscitations
- 2006Measuring in-plane mechanical properties of plate-like samples using phonographic pickupscitations
Places of action
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article
Crystallization and shear modulus of a forming biopolymer film determined by in situ x-ray diffraction and ultrasound reflection methods
Abstract
The structure and the rigidity of a forming biopolymer film were determined using concurrent x-ray diffraction and ultrasonic reflection measurements. Film formation of a xylan solution (de-ionized water, 10 g/l xylan, 4 g/l glycerol) was studied during water evaporation at 24(+/- 2) degrees C, 37(+/- 5) %RH. X-ray diffraction (XRD) data showed the crystallization and ultrasonic data the increase of the shear modulus (G) during water evaporation. Xylan crystallized into small xylan dihydrate crystallites, the number of which increased as water evaporated. Crystallization began earlier than the increase in G during film formation. The increase in G also continued after the crystallites were fully formed, indicating still ongoing structural changes in the amorphous parts. The maximum value of G was 0.1-0.5 GPa. XRD measurements performed ex situ showed a crystallinity of 16%-19% (+/- 5%) and a fairly isotropic crystallite orientation in the surface plane of the films. (C) 2008 American Institute of Physics.