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Time Resolved Polar...
Time Resolved Polarised Grazing Incidence Neutron Scattering from Composite Materials
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- Wolff, Max (författare)
- Uppsala universitet,Materialfysik
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- Saini, Apurve (författare)
- Uppsala universitet,Materialfysik
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- Simonne, David (författare)
- Uppsala universitet,Materialfysik,Univ Rennes 1, Inst Phys Rennes, Rennes, France
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- Adlmann, Franz (författare)
- Uppsala universitet,Materialfysik
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- Nelson, Andrew (författare)
- ANSTO, Lucas Heights, NSW, Australia
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(creator_code:org_t)
- 2019-03-07
- 2019
- Engelska.
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Ingår i: Polymers. - : MDPI. - 2073-4360. ; 11:3
- Relaterad länk:
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https://uu.diva-port... (primary) (Raw object)
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https://www.mdpi.com...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Neutron scattering experiments are a unique tool in material science due to their sensitivity to light elements and magnetic induction. However, for kinetic studies the low brilliance at existing sources poses challenges. In the case of periodic excitations these challenges can be overcome by binning the scattering signal according to the excitation state of the sample. To advance into this direction we have performed polarised and time resolved grazing incidence neutron scattering measurements on an aqueous solution of the polymer F127 mixed with magnetic nano-particles. Magnetic nano-composites like this provide magnetically tuneable properties of the polymer crystal as well as magnetic meta-crystals. Even though the grazing incidence small angle scattering and polarised signals are too weak to be evaluated at this stage we demonstrate that such experiments are feasible. Moreover, we show that the intensity of the 111 Bragg peak of the fcc micellar crystal depends on the actual shear rate, with the signal being maximised when the shear rate is lowest (and vice-versa).
Ämnesord
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Nyckelord
- GISANS
- composite materials
- rheology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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