AustralieFrV1, Main, Exploration, bibRecord, 00D879

Small angle X-ray scattering by TiO2/ZrO2 mixed oxide particles and a synroc precursor

Identifieur interne : 00D879 ( Main/Exploration ); précédent : 00D878; suivant : 00D880

Small angle X-ray scattering by TiO2/ZrO2 mixed oxide particles and a synroc precursor

Auteurs : D. Gazeau [France] ; R. Amal [Australie] ; J. Bartlett [Australie] ; Th. Zemb [France]

Source :

Progress in Colloid & Polymer Science [ 0340-255X ] ; 1993.

RBID : ISTEX:CC460F255DD46911E8A23CEE4C265944BD8CCD18

Descripteurs français

Wicri :
- topic : Oxyde, Polymère.

English descriptors

Abstract

Abstract: This high resolution small angle X-ray scattering study of a concentrated oxide sol, precursor of the SYNROC matrix for the storage of the high level radioactive waste, evidences a locally cylindrical microstructure. Locally, nanometric cylinders show disordered axis with some concentration dependent connections. This microstructure explains the paradoxical stability of this oxide dispersions. This stability has a steric origin and electrostatic repulsions are not needed. The addition of aluminium to the initial titanium-zirconium mixture enhances branching on the locally cylindrical microstructure. Finally, we show that the solid powder obtained after drying of the sol has the same specific area (∼ 1000 m2/g) as the sol.

Url:

https://api.istex.fr/document/CC460F255DD46911E8A23CEE4C265944BD8CCD18/fulltext/pdf

DOI: 10.1007/BFb0118533

Affiliations:

Australie, France

Links toward previous steps (curation, corpus...)

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to stream Istex, to step Curation: 002609
to stream Istex, to step Checkpoint: 002994
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to stream Main, to step Curation: 00D879

Le document en format XML

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<term>Brewster angle microscope</term>
<term>Chimie mol6culaire</term>
<term>Colloid</term>
<term>Colloid polymer science</term>
<term>Colloid polymer science progr colloid polym</term>
<term>Complete synroc precursor</term>
<term>Contrast term</term>
<term>Correlation length</term>
<term>Cylindrical microstructure</term>
<term>Different volume fractions</term>
<term>Dilution experiment</term>
<term>Direct comparison</term>
<term>Disordered cylinders</term>
<term>Disordered dispersion</term>
<term>Dispersion</term>
<term>Electronic densities</term>
<term>Electrostatic repulsions</term>
<term>Europium sites</term>
<term>Geological barrier</term>
<term>Globular particles</term>
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<term>High resolution</term>
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<term>Monolayer structures</term>
<term>Other topologies</term>
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<term>Oxide particles</term>
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<term>Polymer</term>
<term>Polymeric systems</term>
<term>Precursor</term>
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<term>Progr colloid polym</term>
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<term>Solid particles</term>
<term>Specific area</term>
<term>Specific surface</term>
<term>Specific surface area</term>
<term>Specific surfaces</term>
<term>Synroc</term>
<term>Synroc precursor</term>
<term>Synroc precursor powders</term>
<term>Typical size</term>
<term>Unit volume</term>
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<term>Contrast term</term>
<term>Correlation length</term>
<term>Cylindrical microstructure</term>
<term>Different volume fractions</term>
<term>Dilution experiment</term>
<term>Direct comparison</term>
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<term>Disordered dispersion</term>
<term>Dispersion</term>
<term>Electronic densities</term>
<term>Electrostatic repulsions</term>
<term>Europium sites</term>
<term>Geological barrier</term>
<term>Globular particles</term>
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<term>High resolution</term>
<term>High resolution bonse hart camera</term>
<term>Ideal microstructures</term>
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<term>Image processing</term>
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<term>Intensity measurements</term>
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<term>Investigative tool</term>
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<term>Specific surfaces</term>
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<front><div type="abstract" xml:lang="en">Abstract: This high resolution small angle X-ray scattering study of a concentrated oxide sol, precursor of the SYNROC matrix for the storage of the high level radioactive waste, evidences a locally cylindrical microstructure. Locally, nanometric cylinders show disordered axis with some concentration dependent connections. This microstructure explains the paradoxical stability of this oxide dispersions. This stability has a steric origin and electrostatic repulsions are not needed. The addition of aluminium to the initial titanium-zirconium mixture enhances branching on the locally cylindrical microstructure. Finally, we show that the solid powder obtained after drying of the sol has the same specific area (∼ 1000 m2/g) as the sol.</div>
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Small angle X-ray scattering by TiO2/ZrO2 mixed oxide particles and a synroc precursor

Small angle X-ray scattering by TiO2/ZrO2 mixed oxide particles and a synroc precursor

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri