Fracture toughness measurements on a glass bonded sodalite high-level waste form.
The electrometallurgical treatment of metallic spent nuclear fuel produces two high-level waste streams; cladding hulls and chloride salt. Argonne National Laboratory is developing a glass bonded sodalite waste form to immobilize the salt waste stream. The waste form consists of 75 Vol.% crystalline sodalite (containing the salt) with 25 Vol.% of an ''intergranular'' glassy phase. Microindentation fracture toughness measurements were performed on representative samples of this material using a Vickers indenter. Palmqvist cracking was confirmed by post-indentation polishing of a test sample. Young's modulus was measured by an acoustic technique. Fracture toughness, microhardness, and Young's modulus values are reported, along with results from scanning electron microscopy studies.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 11820
- Report Number(s):
- ANL/NT/CP-99069; TRN: US0102142
- Resource Relation:
- Conference: American Ceramic Society 101st Annual Meeting, Indianapolis, IN (US), 04/25/1999--04/28/1999; Other Information: PBD: 19 May 1999
- Country of Publication:
- United States
- Language:
- English
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