Microstructures of simulated nuclear waste

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1989.tb06266.x· OSTI ID:5156713

Chan, H W; Howitt, D G ^[1]; Harker, A B ^[2]

---

1. California Univ., Davis, CA (United States). Dept. of Mechanical Engineering
2. Rockwell International Corp., Thousand Oaks, CA (United States)

This paper reports the microstructures of simulated tailored ceramic forms for the Idaho Chemical Processing Plant (ICPP) high-level waste characterized by TEM. The ceramic forms were consolidated from simulated ICPP waste calcines with either silica-yttria-based or silica-lithia-based additives by hot isostatic pressing. The hot isostatically pressed ceramic waste forms are composed of cubic CaF{sub 2}, monoclinic ZrO{sub 2}, stabilized cubic ZrO{sub 2}, tetragonal ZrSiO{sub 4}, and amorphous silicate phases which can be phase separated. The phase-separated glass is a result of phase immiscibility in the soda aluminosilicate glass to the compositions of albite and mullite.

• OSTI ID: 5156713
• Journal Information: Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 72:6; ISSN JACTA; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

052001 -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ADDITIVES
ALKALINE EARTH METAL COMPOUNDS
AMORPHOUS STATE
CALCINED WASTES
CALCIUM COMPOUNDS
CALCIUM FLUORIDES
CALCIUM HALIDES
CERAMICS
CHALCOGENIDES
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
FABRICATION
FLUORIDES
FLUORINE COMPOUNDS
FUEL REPROCESSING PLANTS
GLASS
HALIDES
HALOGEN COMPOUNDS
HOT PRESSING
IDAHO CHEMICAL PROCESSING PLANT
MATERIALS
MATERIALS WORKING
MICROSCOPY
MICROSTRUCTURE
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PRESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SILICATES
SILICON COMPOUNDS
SIMULATION
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
ZIRCONIUM SILICATES