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Title: Candidate glass-ceramic waste forms for immobilization of the calcines stored at the Idaho Chemical Processing Plant

Abstract

Candidate glass-ceramic waste forms for immobilizaion of the major types of calcines stored at the Idaho Chemical Processing Plant (ICPP) were synthesized and characterized. The waste forms were prepared by hot isostatically pressing a mixture 70 wt% of precompacted simulated non-radioactive calcine and 30 wt% additives (Silica and Al or Ti metal powders). The types of calcines stored in stainless steel Bin Sets at the ICPP are fluorinel/sodium (Fl/Na), alumina, zirconia, zirconia/sodium (Zr/Na), and zirconia-alumina (Zr-AD. In addition to the silica additive, glass-ceramics for Fl/NA and alumina calcines were prepared and characterized using ICPP soil and clay additives. The characteristics of the waste forms including density, elastic properties, chemical durability, glass and crystalline phases, phases separation, and the microstructure were investigated. The 28-day MCC-1 test for chemical durability was used for all the waste forms. In addition, the Product Consistency Test (PCI) was conducted for the glass-ceramics, and the normalized elemental releases in g/m{sup 2} were compared with the Environmental Assessment (EA) glass. The characteristics of the soil and clay glass-ceramics appear to be as good as the waste forms prepared with silica. The glass-ceramic waste forms recommended are: 5Ti-Clay, or 5Ti-SoiL or 5Ti-Silica for the fluorinel/sodium calcine-, Clay ormore » silica for the alumina calcine; and 5Ti-Silica for the zirconia, Zr/Na, and Zr-Al calcines. Soil- and clay-based glass- ceramics offer an opportunity to incorporate contaminated waste into durable low volume waste forms.« less

Authors:
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
119415
Report Number(s):
INEL-94/00026; CONF-950401-28
ON: DE96002011; TRN: 95:024499
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Technical Report
Resource Relation:
Conference: 97. annual meeting of the American Ceramic Society, Cincinnati, OH (United States), 30 Apr - 1 May 1995; Other Information: PBD: [1995]
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; 36 MATERIALS SCIENCE; CERAMICS; MICROSTRUCTURE; RADIOACTIVE WASTES; VITRIFICATION; WASTE FORMS; RADIOACTIVE WASTE PROCESSING; STATISTICAL DATA; CALCINED WASTES

Citation Formats

Vinjamuri, K. Candidate glass-ceramic waste forms for immobilization of the calcines stored at the Idaho Chemical Processing Plant. United States: N. p., 1995. Web. doi:10.2172/119415.
Vinjamuri, K. Candidate glass-ceramic waste forms for immobilization of the calcines stored at the Idaho Chemical Processing Plant. United States. https://doi.org/10.2172/119415
Vinjamuri, K. 1995. "Candidate glass-ceramic waste forms for immobilization of the calcines stored at the Idaho Chemical Processing Plant". United States. https://doi.org/10.2172/119415. https://www.osti.gov/servlets/purl/119415.
@article{osti_119415,
title = {Candidate glass-ceramic waste forms for immobilization of the calcines stored at the Idaho Chemical Processing Plant},
author = {Vinjamuri, K},
abstractNote = {Candidate glass-ceramic waste forms for immobilizaion of the major types of calcines stored at the Idaho Chemical Processing Plant (ICPP) were synthesized and characterized. The waste forms were prepared by hot isostatically pressing a mixture 70 wt% of precompacted simulated non-radioactive calcine and 30 wt% additives (Silica and Al or Ti metal powders). The types of calcines stored in stainless steel Bin Sets at the ICPP are fluorinel/sodium (Fl/Na), alumina, zirconia, zirconia/sodium (Zr/Na), and zirconia-alumina (Zr-AD. In addition to the silica additive, glass-ceramics for Fl/NA and alumina calcines were prepared and characterized using ICPP soil and clay additives. The characteristics of the waste forms including density, elastic properties, chemical durability, glass and crystalline phases, phases separation, and the microstructure were investigated. The 28-day MCC-1 test for chemical durability was used for all the waste forms. In addition, the Product Consistency Test (PCI) was conducted for the glass-ceramics, and the normalized elemental releases in g/m{sup 2} were compared with the Environmental Assessment (EA) glass. The characteristics of the soil and clay glass-ceramics appear to be as good as the waste forms prepared with silica. The glass-ceramic waste forms recommended are: 5Ti-Clay, or 5Ti-SoiL or 5Ti-Silica for the fluorinel/sodium calcine-, Clay or silica for the alumina calcine; and 5Ti-Silica for the zirconia, Zr/Na, and Zr-Al calcines. Soil- and clay-based glass- ceramics offer an opportunity to incorporate contaminated waste into durable low volume waste forms.},
doi = {10.2172/119415},
url = {https://www.osti.gov/biblio/119415}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Nov 01 00:00:00 EST 1995},
month = {Wed Nov 01 00:00:00 EST 1995}
}