Materials Interface Interactions Test (MIIT) details and observations on in situ sample retrievals and test termination
- Sandia National Labs., Albuquerque, NM (United States)
- Westinghouse Savannah River Co., Aiken, SC (United States)
The Materials Interface Interaction Tests (MIIT) program involves the comparative performance-evaluation testing of multiple US and foreign nuclear waste glasses (nonradioactive), potential canister and overpack metals, brine, and geologic materials in the rock salt repository environment at the Waste Isolation Pilot Plant (WIPP) facility. We emplaced about 2000 materials specimens onto fiftn, separate test assemblies and exposed them to a heated, salt-brine environment at the WIPP for multi-year periods. We successfully terminated the in situ conduct of the MIIT in July 1991, after five years of testing, and retrieved all samples for posttest laboratory analyses. These 5-year glass and metal samples, along with samples previously retrieved after 0.5, 1, and 2 years, are being analyzed in multiple international laboratories, in a cooperative testing effort. Individual test participants will present available laboratory results, and interpretations, on MIIT specimens in this workshop. Our focus in this paper is to summarize technical details and repository-relevant observations on the in situ conduct, sampling, and termination operations of the MIIT experimental program. Such information should be useful for the interpretation of the laboratory-based analyses. This information also will be relevant and instructive for other organizations contemplating, planning, or conducting additional materials-related, in situ tests.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States); Westinghouse Savannah River Co., Aiken, SC (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789; AC09-76SR00001
- OSTI ID:
- 10126979
- Report Number(s):
- SAND--92-1954C; CONF-9210263--2; ON: DE93006772
- Country of Publication:
- United States
- Language:
- English
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Details of in situ sample retrievals and test completion for the Materials Interface Interactions Test (MIIT)
Details of in situ sample retrievals and test completion for the Materials Interface Interactions Test (MIIT)
Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
360105
360604
ALPHA-BEARING WASTES
BACKFILLING
BOROSILICATE GLASS
BRINES
CONTAINERS
CORROSION
CORROSION AND EROSION
CORROSION, EROSION, AND DEGRADATION
ENGINEERED SAFETY SYSTEMS
HIGH-LEVEL RADIOACTIVE WASTES
LEACHING
MATERIALS TESTING
METALS
PILOT PLANTS
RADIOACTIVE WASTE DISPOSAL
SALT DEPOSITS
SIMULATION
WASTE DISPOSAL AND STORAGE
WASTE FORMS
WIPP