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Nuclear waste immobilization into structure of zirconolite by complex sol gel process

TitoloNuclear waste immobilization into structure of zirconolite by complex sol gel process
Tipo di pubblicazionePresentazione a Congresso
Anno di Pubblicazione2014
AutoriSmoliński, T., Deptuła A., Lada W., Olczak T., Chmielewski A.G., and Zaza F.
Conference NameMaterials Research Society Symposium Proceedings
EditoreMaterials Research Society
Parole chiaveActinides, Ascorbic acid, Complexing agents, Doped sample, Firing temperature, High level nuclear wastes, Nuclear waste immobilization, Organic acids, Radioactive wastes, Second generation, Sol-gel process, Thermoanalysis, Titanium, waste management, X ray diffraction, Zirconium compounds, Zirconolite
Abstract

Zirconolite (CaZrTi2O7) is one of the components of Synroc materials, which are regarded throughout the world nuclear as the second generation of high-level nuclear waste forms. The zirconolite phase was synthesized by a sol-gel method, with one variant of the method making use of ascorbic acid as a strong complexing agent. Into the structure of the zirconolite was incorporated 10 mol% Sr. Undoped and doped samples were examined by thermal analyses and X-ray diffraction. Addition of ascorbic acid to the sols lowered the firing temperature and promoted formation of the zirconolite phase. Copyright © Materials Research Society 2014.

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84924359167&doi=10.1557%2fopl.2014.593&partnerID=40&md5=9add4191af9faba318f38f70ba775779
DOI10.1557/opl.2014.593
Citation KeySmoliński2014