Carvajal Nuñez , R. and Prieur and Eloirdi, R. and Prieur, D. and Martel, L. and Lopez Honorato, E. and Farnan, I. and Vitova, T. and Somers, J. (2014) Structure of UC2 and U2C3:XRD, 13C NMR and EXAFS study. Journal of Alloys and Compounds, 589. pp. 234-239. ISSN ISSN: 0925-8388 DOI https://doi.org/10.1016/j.jallcom.2013.11.202
![]()
|
Image
IF 1-s2.0-S0925838813029447-gr1.jpg - Published Version Download (35kB) | Preview |
|
![]() |
Text
IF 1-s2.0-S0925838813029447-main.pdf - Published Version Restricted to Registered users only Download (1MB) |
Abstract
In this study, uranium dicarbide (UC2) has been prepared by arc melting and heat treated under vacuum to form uranium sequicarbide (U2C3) in the presence of a second phase UC2-z. Both samples, as cast and heat treated, have been characterised by chemical analyses, X-ray diffraction (XRD), 13C magic angle spinning nuclear magnetic resonance (MAS-NMR) and by extended X-ray absorption fine structure (EXAFS). The composition, the purity, the various environments of both U and C atoms as well as the bonds length with the coordination number have been determined. By combining a long-range order method (XRD) and short-range order spectroscopy techniques (EXAFS and NMR), a unique view on the microstructure of UC2, before and after heat treatment, and of U2C3 phase has been achieved.
Item Type: | Article |
---|---|
Uncontrolled Keywords: | 2013AREP; IA66; |
Subjects: | 03 - Mineral Sciences |
Divisions: | 03 - Mineral Sciences |
Journal or Publication Title: | Journal of Alloys and Compounds |
Volume: | 589 |
Page Range: | pp. 234-239 |
Identification Number: | https://doi.org/10.1016/j.jallcom.2013.11.202 |
Depositing User: | Sarah Humbert |
Date Deposited: | 13 Feb 2014 11:15 |
Last Modified: | 18 Feb 2014 17:27 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/2958 |
Actions (login required)
![]() |
View Item |