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U.S. Department of Energy
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Properties of glasses with high water content. Progress report, 1 February 1981-31 December 1981. [Transport properties, chemical durability; radiation coloration; transition temperature; density]

Technical Report ·
OSTI ID:5682235
Investigation of various properties of glasses with high water content was continued. The following results were obtained. (1) When plotted against water content, the electrical conductivity of sodium-silicate glasses shows a pronounced minimum at 3 approx. 4 wt% water content. The diffusion coefficient of sodium follows the same trend. These observations led to the conclusion that at low water content the interaction between water and alkali ions is similar to that in the mixed alkali glasses, while at high water content, water disrupts the glass network structure making the alkali mobility easiers. (2) Chemical durability determined from the leach rate of sodium in water and the HF etching rate of glasses with high water content was found to decrease with water content. (3) The radiation coloration resistant characteristics of glasses were found to increase with water content. The OH concentration in glass was found to increase with radiation dosage suggesting the conversion of H/sub 2/0 to -0H by radiation. (4) Both the glass transition temperature and density of glasses decreased monotonically with increasing water content.
Research Organization:
Rensselaer Polytechnic Inst., Troy, NY (USA)
DOE Contract Number:
AC02-79ER10453
OSTI ID:
5682235
Report Number(s):
DOE/ER/10453-03; ON: DE82011574
Country of Publication:
United States
Language:
English