Alteration of Ti/Zr-based ceramics (Synroc) in humid clay at 70 degrees C

Authors
Leturcq, G Berger, G Advocat, T Lacombe, J Vance, E
Citation
G. Leturcq et al., Alteration of Ti/Zr-based ceramics (Synroc) in humid clay at 70 degrees C, CR AC S IIA, 327(12), 1998, pp. 827-831
Citations number
9
Categorie Soggetti
Earth Sciences
Journal title
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DELA TERRE ET DES PLANETES
ISSN journal
12518050 → ACNP
Volume
327
Issue
12
Year of publication
1998
Pages
827 - 831
Database
ISI
SICI code
1251-8050(199812)327:12<827:AOTC(I>2.0.ZU;2-G
Abstract
The chemical durability of three zirconotitanate ceramics was quantified on contact with humid clay at 70 degrees C. These materials are innovative ca ndidates for the containment of fission products or long-lived actinides su ch as Np, Am and Pu. Synroc C containing molybdates is the only sample show ing significant mass losses after nine months of interaction with humid cla y. This may be due to a migration of Mo to the reaction interface. Mo was r ecovered in clay as calcium molybdate. ((C) Academie des sciences / Elsevie r, Paris.).