Comparison of Phases Formation Process in Initial and Mechanically Activated Ceramic Batches with Pyrochlore Formulations

Conference · Mon Feb 25 00:00:00 EST 2002

OSTI ID:828150

Stefanovsky, S V; Chizhevskaya, S V; Yudintsev, S V

Formation of two pyrochlore ceramics with formulations CaZr0.25U0.75Ti2O7 and CaUTi2O7 within the temperature range 1000-1500 C from batches prepared by grinding of oxide powders in a mortar and an activator with hydrostatic yokes AGO-2U as well as soaking of a Ca, Zr, and Ti oxide mixture with uranylnitrate solution was studied. The pyrochlore ceramics are produced through intermediate calcium uranate formation. Phase formation reactions in the batch pre-treated in the AGO-2U unit were completed within the temperature range 1000-1100 C that is lower than in the batches prepared by two other methods.

• Research Organization: SIA Radon, 7th Rostovskii per. 2/14, Moscow 119121 (RU); University of Chemical Engineering, Miusskaya 9, Moscow 125047 (RU); IGEM RAS, Starominetnii 35, Moscow 109017 (RU)
• Sponsoring Organization: none (US)
• OSTI ID: 828150
• Resource Relation: Conference: Waste Management 2002 Symposium, Tucson, AZ (US), 02/24/2002--02/28/2002; Other Information: PBD: 25 Feb 2002
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CALCIUM
CERAMICS
GRINDING
HYDROSTATICS
MIXTURES
MORTARS
OXIDES
PYROCHLORE
URANATES
WASTE MANAGEMENT