Behavior of RuO sub 2 in a glass melt

Conference · Wed May 01 00:00:00 EDT 1991

OSTI ID:5670046

Hrma, P R; Cobb, W T

Samples of a borosilicate glass melt containing 0.27 wt% of Ruo{sub 2} particles, approximately 1 {mu}m in diameter, were subjected to heat treatments at 1050{degrees}C in alumina and metallic crucibles and investigated by optical microscopy. The results indicate that RuO{sub 2} particles agglomerate before sedimentation. Agglomerations appear to be produced in the melt meniscus and the thin film of melt above the meniscus, where high velocity gradients bring the RuO{sub 2} particles into correct. 9 refs., 1 tab.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5670046
• Report Number(s): PNL-SA-19544; CONF-9104261-5; ON: DE91013717
• Resource Relation: Conference: 5. international symposium on ceramics in nuclear and hazardous waste management, Cincinnati, OH (USA), 29 Apr - 3 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
HIGH-LEVEL RADIOACTIVE WASTES
VITRIFICATION
RUTHENIUM OXIDES
AGGLOMERATION
SEDIMENTATION
BOROSILICATE GLASS
HEAT TREATMENTS
MATERIALS TESTING
MELTING
CHALCOGENIDES
GLASS
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
REFRACTORY METAL COMPOUNDS
RUTHENIUM COMPOUNDS
TESTING
TRANSITION ELEMENT COMPOUNDS
WASTES
052001* - Nuclear Fuels- Waste Processing
360602 - Other Materials- Structure & Phase Studies