Instantaneous formation of Synroc-B phases at ambient pressure

Conference · Thu Aug 01 00:00:00 EDT 1996

OSTI ID:264434

McHale, J M; Coppa, N V ^[1]

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1. Los Alamos National Lab., NM (United States)

The titanate based nuclear waste immobilization medium, Synroc-B, has been synthesized at atmospheric pressure from freeze dried nitrate precursors. Complete formation of the phase assemblage (CaTiO{sub 3}, CaZrTi{sub 2}O{sub 7}, and BaAl{sub 2}Ti{sub 5}O{sub 14}) occurred upon calcination of the nitrate precursor after only 10 minutes at 1,100 C. This improvement in the preparation conditions may lead to practical application of the material in the safe disposal of high level nuclear waste and the immobilization of other strategic nuclear materials.

• OSTI ID: 264434
• Report Number(s): CONF-951155--; ISBN 1-55899-315-0
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
36 MATERIALS SCIENCE
ALUMINIUM OXIDES
BARIUM OXIDES
CALCIUM OXIDES
HIGH-LEVEL RADIOACTIVE WASTES
HOLLANDITE
NITRATES
PEROVSKITE
PHASE STUDIES
RADIOACTIVE WASTE PROCESSING
SYNROC PROCESS
SYNTHETIC ROCKS
TITANIUM OXIDES
VITRIFICATION
WASTE FORMS
X-RAY DIFFRACTION
ZIRCONIUM OXIDES
ZIRCONOLITE