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Title: WIPP/SRL in-situ tests: MIIT program--The effects of metal package components

Abstract

The Materials Interface Interactions Tests or MIIT is the largest in-situ testing program in progress, involving burial of many simulated nuclear waste systems and accompanying package components. In MIIT, waste glass samples were fabricated into the shape of `pineapple slices`, polished on one side. Proposed package components were also made into a similar configuration and the various glasses, metals, and geologic samples were than stacked onto heater elements within Teflon assemblies. This produced interactions of interest by creating glass/glass, glass/salt, and glass/metal interfaces. Since the outer diameter of the metal was smaller than the outer diameter of the glass, a lip was created which was also produced a glass/liquid interface, which was also studied. Overall, a total of 50 stacks or assemblies of pineapple slices were created in seven different stacking arrangements. Each individual assembly was then installed in an instrumented borehole at WIPP. Brine was then added to most of boreholes and the assemblies heated and maintained at 90{degrees}C. This was achieved by energizing the central heating and rod that traversed through the middle opening of each of the pineapple slices in each assembly. Due to the design of these units, glass, metal and geologic samples could be removedmore » at time intervals of 6 mos., 1 year, 2 years, and 5 years. Currently, all but the 5 year samples have been removed from test and are being evaluated in laboratories of MIIT participants.« less

Authors:
 [1];  [2];  [3]
  1. Clemson Univ., SC (United States)
  2. Westinghouse Savannah River Co., Aiken, SC (United States)
  3. Sandia National Labs., Albuquerque, NM (United States)
Publication Date:
Research Org.:
Westinghouse Savannah River Co., Aiken, SC (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10131094
Report Number(s):
WSRC-MS-91-074; CONF-9104256-9
ON: DE92009752
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Conference
Resource Relation:
Conference: Symposium on nuclear waste management,Cincinnati, OH (United States),28 Apr - 2 May 1991; Other Information: PBD: [1991]
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; HIGH-LEVEL RADIOACTIVE WASTES; LEACHING; WIPP; WASTE FORMS; GLASS; METALS; PERFORMANCE TESTING; OPTICAL MICROSCOPY; SCANNING ELECTRON MICROSCOPY; X-RAY DIFFRACTION; INFRARED SPECTRA; FOURIER TRANSFORM SPECTROMETERS; MASS SPECTROSCOPY; 052002; WASTE DISPOSAL AND STORAGE

Citation Formats

Covington, J A, Wicks, G G, and Molecke, M A. WIPP/SRL in-situ tests: MIIT program--The effects of metal package components. United States: N. p., 1991. Web.
Covington, J A, Wicks, G G, & Molecke, M A. WIPP/SRL in-situ tests: MIIT program--The effects of metal package components. United States.
Covington, J A, Wicks, G G, and Molecke, M A. 1991. "WIPP/SRL in-situ tests: MIIT program--The effects of metal package components". United States. https://www.osti.gov/servlets/purl/10131094.
@article{osti_10131094,
title = {WIPP/SRL in-situ tests: MIIT program--The effects of metal package components},
author = {Covington, J A and Wicks, G G and Molecke, M A},
abstractNote = {The Materials Interface Interactions Tests or MIIT is the largest in-situ testing program in progress, involving burial of many simulated nuclear waste systems and accompanying package components. In MIIT, waste glass samples were fabricated into the shape of `pineapple slices`, polished on one side. Proposed package components were also made into a similar configuration and the various glasses, metals, and geologic samples were than stacked onto heater elements within Teflon assemblies. This produced interactions of interest by creating glass/glass, glass/salt, and glass/metal interfaces. Since the outer diameter of the metal was smaller than the outer diameter of the glass, a lip was created which was also produced a glass/liquid interface, which was also studied. Overall, a total of 50 stacks or assemblies of pineapple slices were created in seven different stacking arrangements. Each individual assembly was then installed in an instrumented borehole at WIPP. Brine was then added to most of boreholes and the assemblies heated and maintained at 90{degrees}C. This was achieved by energizing the central heating and rod that traversed through the middle opening of each of the pineapple slices in each assembly. Due to the design of these units, glass, metal and geologic samples could be removed at time intervals of 6 mos., 1 year, 2 years, and 5 years. Currently, all but the 5 year samples have been removed from test and are being evaluated in laboratories of MIIT participants.},
doi = {},
url = {https://www.osti.gov/biblio/10131094}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1991},
month = {Tue Dec 31 00:00:00 EST 1991}
}

Conference:
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