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Title: Microstructural characterization of halite inclusions in a surrogate glass bonded ceramic waste form

Abstract

A glass-bonded ceramic waste form is being developed to immobilize high-level chloride waste salts generated during the conditioning of spent sodium-bonded nuclear fuel for disposal. The waste salt is loaded into zeolite cavities, mixed with a borosilicate glass, and consolidated at 800--900 C by hot isostatic pressing. During this process, small amounts of halite are generated, whereas the zeolite converts to the mineral sodalite, which retains most of the waste salt. In this work, optical microscopy, scanning electron microscopy, and transmission electron microscopy2048e used to characterize the halite inclusions in the final waste form. The halite inclusions were detected within micron- to submicron-sized pores that form within the glass phase in the vicinity of the sodalite/glass interface. The chemical nature and distribution of the halite inclusions were determined. The particular microstructure of the halite inclusions has been related to the corrosion of the ceramic waste form.

Authors:
; ;
Publication Date:
Research Org.:
Argonne National Lab., IL (United States)
Sponsoring Org.:
USDOE; US Department of Energy (United States)
OSTI Identifier:
5298923
Report Number(s):
ANL/CMT/CP-100551
ON: DE00755854
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: 102nd Annual Meeting of the American Ceramic Society, St. Louis, MO (United States), 30 Apr 2000 - 3 May 2000
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 36 MATERIALS SCIENCE; WASTE FORMS; HIGH-LEVEL RADIOACTIVE WASTES; SPENT FUELS; RADIOACTIVE WASTE PROCESSING; CHLORIDES; HALITE; INCLUSIONS; MICROSTRUCTURE; GLASS; CERAMICS; RADIOACTIVE WASTES; NUCLEAR FUELS; RADIOACTIVE WASTE MANAGEMENT; WASTE PROCESSING; CHLORINE COMPOUNDS; HALIDES; HALIDE MINERALS; RADIOACTIVE MATERIALS; WASTES; ENERGY SOURCES; FUELS; REACTOR MATERIALS; WASTE MANAGEMENT; PROCESSING; HALOGEN COMPOUNDS; MINERALS; MATERIALS; MANAGEMENT; 052002* - Nuclear Fuels- Waste Disposal & Storage; 360602 - Other Materials- Structure & Phase Studies

Citation Formats

Luo, J. S., Zyryanov, V. N., and Ebert, W. L. Microstructural characterization of halite inclusions in a surrogate glass bonded ceramic waste form. United States: N. p., 2000. Web.
Luo, J. S., Zyryanov, V. N., & Ebert, W. L. Microstructural characterization of halite inclusions in a surrogate glass bonded ceramic waste form. United States.
Luo, J. S., Zyryanov, V. N., and Ebert, W. L. Fri . "Microstructural characterization of halite inclusions in a surrogate glass bonded ceramic waste form". United States.
@article{osti_5298923,
title = {Microstructural characterization of halite inclusions in a surrogate glass bonded ceramic waste form},
author = {Luo, J. S. and Zyryanov, V. N. and Ebert, W. L.},
abstractNote = {A glass-bonded ceramic waste form is being developed to immobilize high-level chloride waste salts generated during the conditioning of spent sodium-bonded nuclear fuel for disposal. The waste salt is loaded into zeolite cavities, mixed with a borosilicate glass, and consolidated at 800--900 C by hot isostatic pressing. During this process, small amounts of halite are generated, whereas the zeolite converts to the mineral sodalite, which retains most of the waste salt. In this work, optical microscopy, scanning electron microscopy, and transmission electron microscopy2048e used to characterize the halite inclusions in the final waste form. The halite inclusions were detected within micron- to submicron-sized pores that form within the glass phase in the vicinity of the sodalite/glass interface. The chemical nature and distribution of the halite inclusions were determined. The particular microstructure of the halite inclusions has been related to the corrosion of the ceramic waste form.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}

Conference:
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