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 paradoxal stability of this oxide dispersions upon the addition of concentrated acidic solutions. 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 calcination (drying) of the sol has the same specific area ({approx} 1000 m{sub 2}/g) than the sol. (Author). 23 refs., 7 figs., 1 tab.
Gazeau, D;
Zemb, T;
[1]
Amal, R;
[2]
Bartlett, J
[3]
- CEA Centre d`Etudes de Saclay, 91 - Gif-sur-Yvette (France). Dept. de Recherche sur l`Etat Condense, les Atomes et les Molecules
- Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW (Australia). Environmental Science Program
- Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW (Australia). Advanced Materials Program
Citation Formats
Gazeau, D, Zemb, T, Amal, R, and Bartlett, J.
Small angle X-ray scattering by TiO{sub 2}/ZrO{sub 2} mixed oxide particles and a Synroc precursor.
France: N. p.,
1992.
Web.
Gazeau, D, Zemb, T, Amal, R, & Bartlett, J.
Small angle X-ray scattering by TiO{sub 2}/ZrO{sub 2} mixed oxide particles and a Synroc precursor.
France.
Gazeau, D, Zemb, T, Amal, R, and Bartlett, J.
1992.
"Small angle X-ray scattering by TiO{sub 2}/ZrO{sub 2} mixed oxide particles and a Synroc precursor."
France.
@misc{etde_10129380,
title = {Small angle X-ray scattering by TiO{sub 2}/ZrO{sub 2} mixed oxide particles and a Synroc precursor}
author = {Gazeau, D, Zemb, T, Amal, R, and Bartlett, J}
abstractNote = {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 paradoxal stability of this oxide dispersions upon the addition of concentrated acidic solutions. 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 calcination (drying) of the sol has the same specific area ({approx} 1000 m{sub 2}/g) than the sol. (Author). 23 refs., 7 figs., 1 tab.}
place = {France}
year = {1992}
month = {Sep}
}
title = {Small angle X-ray scattering by TiO{sub 2}/ZrO{sub 2} mixed oxide particles and a Synroc precursor}
author = {Gazeau, D, Zemb, T, Amal, R, and Bartlett, J}
abstractNote = {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 paradoxal stability of this oxide dispersions upon the addition of concentrated acidic solutions. 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 calcination (drying) of the sol has the same specific area ({approx} 1000 m{sub 2}/g) than the sol. (Author). 23 refs., 7 figs., 1 tab.}
place = {France}
year = {1992}
month = {Sep}
}