A synchrotron X-ray spectroscopy study of titanium co-ordination in explosive melt glass derived from the trinity nuclear test

Abstract

The speciation of Ti in trinitite, the explosive melt glass derived from the Trinity Test of 16th of July 1945, was investigated by X-ray absorption spectroscopy (XAS). Ti K-edge XANES showed that Ti was present in the Ti(IV) oxidation state for all samples. Fitting of pre-edge features by Gaussian functions and comparison with standards of known Ti coordination revealed significant variation in Ti coordination environment between samples. The variation of Ti coordination may be attributed to several factors including specific local chemistry and thermal histories of samples, in keeping with the highly heterogeneous microstructure of trinitite and the arkosic sand source material.

Metadata

Authors/Creators:	Bailey, D.J. https://orcid.org/0000-0002-0313-8748 Stennett, M.C. Ravel, B. Crean, D.E. Hyatt, N.C.
Copyright, Publisher and Additional Information:	© 2019 The Royal Society of Chemistry. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. https://creativecommons.org/licenses/by/3.0/
Dates:	Accepted: 19 April 2019 Published (online): 26 April 2019 Published: 26 April 2019
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	13 May 2019 16:12
Last Modified:	13 May 2019 16:12
Status:	Published
Publisher:	Royal Society of Chemistry
Refereed:	Yes
Identification Number:	https://doi.org/10.1039/c8ra10375e

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A synchrotron X-ray spectroscopy study of titanium co-ordination in explosive melt glass derived from the trinity nuclear test

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