Increases in leach rate due to possible cracking in silicate glasses

Conference · Fri Dec 31 00:00:00 EST 1993

OSTI ID:62246

Sang, J C; Barkatt, A ^[1]; Talmy, I G; Norr, M K ^[2]

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1. Catholic Univ. of America, Washington, DC (United States)
2. Naval Surface Warfare Center, Silver Spring, MD (United States)

Comparative studies of two multi-component silicate glasses have confirmed the observation that glasses with a relatively low SiO{sub 2} + AlO{sub 3/2} content may exhibit temporary increases in leach rate during the initial stages of their exposure to water. SEM studies of the leached glass surfaces strongly support the assumption that this phenomenon is due to cracking of the leached glass and a consequent increase of the exposed surface area.

• OSTI ID: 62246
• Report Number(s): CONF-921101-Vol.294; CNN: Contract AXO654764; Contract NAG5-1057; TRN: 95:002922-0062
• Resource Relation: Conference: 16. Materials Research Society (MRS) fall meeting, Boston, MA (United States), 30 Nov - 5 Dec 1992; Other Information: PBD: 1993; Related Information: Is Part Of Scientific basis for nuclear waste management XVI; Interrante, C.G. [ed.] [Nuclear Regulatory Commission, Washington, DC (United States)]; Pabalan, R.T. [ed.] [Southwest Research Inst., San Antonio, TX (United States)]; PB: 959 p.
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
36 MATERIALS SCIENCE
RADIOACTIVE WASTES
VITRIFICATION
BOROSILICATE GLASS
LEACHING
CRACKS
SURFACE PROPERTIES
SCANNING ELECTRON MICROSCOPY
REACTION KINETICS