ANSTO Publications Online >
Journal Publications >
Journal Articles >

Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/3022

Title: HIPed tailored hollandite waste forms for the immobilization of radioactive Cs and Sr.
Authors: Carter, ML
Gillen, AL
Olufson, K
Vance, ER
Keywords: Hollandite
Waste Forms
Solidification
Vitrification
Cesium
Strontium
Issue Date: May-2009
Publisher: Wiley-Blackwell
Citation: Carter, M. L., Gillen, A. L., Olufson, K., & Vance, E. R. (2009). HIPed tailored hollandite waste forms for the immobilization of radioactive Cs and Sr. Journal of the American Ceramic Society, 92(5), 1112-1117.
Abstract: Hot isostatically pressed tailored hollandite waste forms were used to demonstrate the immobilization of Cs and Sr are separable from spent nuclear fuel, as well as Ba and Rb. Four hollandite formulations were investigated, two samples with ∼12 wt% waste loading (on an oxide basis) and two with ∼18 wt% waste loading. Two of the samples were Al-substituted and the other two contained Mg. The hollandite in the Al-substituted samples contained all the waste cations, as designed, but this was not the case in the Mg-substituted samples. The hollandite in the Mg-substituted samples did not contain all the waste cations, with ∼50% of the Sr forming SrTiO3 as a secondary phase. This resulted in waste forms that were not as durable, with respect to Cs, as their Al counterparts. The formation of SrTiO3 had little effect on the Sr release rates and was not detrimental to the Mg-substituted hollandite waste form. For the Al-substituted samples, the MCC-1 normalized release rates were <0.06 g·(m2·day)−1 at 0–28 days for all elements, while the Cs release rates remained at 2.0 g·(m2·day)−1 at 0–28 days for the Mg-substituted samples. © 2009, Wiley-Blackwell. The definitive version is available at www3.interscience.wiley.com
URI: http://dx.doi.org/10.1111/j.1551-2916.2009.03021.x
http://apo.ansto.gov.au/dspace/handle/10238/3022
ISSN: 0002-7820
Appears in Collections:Journal Articles

Files in This Item:

There are no files associated with this item.

Items in APO are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback