Ceramic Waste Forms for Actinides

Research Article| December 01, 2006 Ceramic Waste Forms for Actinides Gregory R. Lumpkin Gregory R. Lumpkin *Australian Nuclear Science and Technology Organisation PMB1, Menai, NSW 2234, Australia E-mail: grl@ansto.gov.au Search for other works by this author on: GSW Google Scholar Author and Article Information Gregory R. Lumpkin *Australian Nuclear Science and Technology Organisation PMB1, Menai, NSW 2234, Australia E-mail: grl@ansto.gov.au Publisher: Mineralogical Society of America First Online: 09 Mar 2017 Online ISSN: 1811-5217 Print ISSN: 1811-5209 © 2006 by the Mineralogical Society of America Elements (2006) 2 (6): 365–372. https://doi.org/10.2113/gselements.2.6.365 Article history First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Gregory R. Lumpkin; Ceramic Waste Forms for Actinides. Elements 2006;; 2 (6): 365–372. doi: https://doi.org/10.2113/gselements.2.6.365 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyElements Search Advanced Search Abstract The concept of nuclear waste forms based on minerals that contain actinides has led to the development of polyphase and special-purpose crystalline ceramics. These ceramics are considered by many to be attractive media for the long-term storage of actinides in geological repositories. The available data show that monazite, pyrochlore, zircon, and zirconolite are all highly durable in both natural and synthetic aqueous systems at low temperatures. In comparison, perovskite is prone to dissolution and conversion to anatase and other secondary alteration products. The titanate and silicate phases of interest become metamict (amorphous) as a result of irradiation. Several compounds, including monazite, cubic zirconia, and the defect fluorite structure types with Zr on the B site, exhibit the attractive property of radiation “resistance.” These results, together with other materials properties, are discussed briefly with respect to criteria for waste form performance. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.