Kinetic study on the grain growth of PuO2 nanocrystals

Daniel Bouëxière; Karin Popa; Olaf Walter; Marco Cologna

doi:10.1039/C8RA10430A

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Kinetic study on the grain growth of PuO₂ nanocrystals†

Daniel Bouëxière,^a Karin Popa,

^a Olaf Walter

*^a and Marco Cologna^a

Author affiliations

* Corresponding authors

^a European Commission, DG Joint Research Centre, JRC-Karlsruhe, P. O. Box 2340, 76125 Karlsruhe, Germany
E-mail: olaf.walter@ec.europa.eu

Abstract

Kinetic measurements on the grain growth of PuO₂ nano-crystals are presented. On the basis of isothermal XRD measurements at temperatures of 820 °C, 900 °C, 1000 °C, and 1100 °C the activation energy for the crystallite growth of PuO₂ nanopowder is determined as 351(5) kJ mol⁻¹ in the temperature range from 820 to 1000 °C. Modelling shows that in this T range growth happens likely through surface diffusion.

Download options Please wait...

Supplementary files

Supplementary information PDF (511K)

Article information

DOI: https://doi.org/10.1039/C8RA10430A
Article type: Paper
Submitted: 20 Dec 2018
Accepted: 18 Feb 2019
First published: 25 Feb 2019
This article is Open Access

Download Citation

RSC Adv., 2019,9, 6542-6547

Permissions

Request permissions

Kinetic study on the grain growth of PuO₂ nanocrystals

D. Bouëxière, K. Popa, O. Walter and M. Cologna, RSC Adv., 2019, 9, 6542 DOI: 10.1039/C8RA10430A

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

RSC Advances