Mechanistic interpretation of glass reaction: Input to kinetic model development

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Actinide-doped SRL 165 type glass was reacted in J-13 groundwater at 90{degree}C for times up to 278 days. The reaction was characterized by both solution and solid analyses. The glass was seen to react nonstoichiometrically with preferred leaching of alkali metals and boron. High resolution electron microscopy revealed the formation of a complex layer structure which became separated from the underlying glass as the reaction progressed. The formation of the layer and its effect on continued glass reaction are discussed with respect to the current model for glass reaction used in the EQ3/6 computer simulation. It is concluded that the ... continued below

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Bates, J.K.; Ebert, W.L.; Bradley, J.P. & Bourcier, W.L. May 1, 1991.

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Actinide-doped SRL 165 type glass was reacted in J-13 groundwater at 90{degree}C for times up to 278 days. The reaction was characterized by both solution and solid analyses. The glass was seen to react nonstoichiometrically with preferred leaching of alkali metals and boron. High resolution electron microscopy revealed the formation of a complex layer structure which became separated from the underlying glass as the reaction progressed. The formation of the layer and its effect on continued glass reaction are discussed with respect to the current model for glass reaction used in the EQ3/6 computer simulation. It is concluded that the layer formed after 278 days is not protective and may eventually become fractured and generate particulates that may be transported by liquid water. 5 refs., 5 figs. , 3 tabs.

Physical Description

10 p.

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INIS; OSTI as DE91015143

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  • 2. annual American Nuclear Society (ANS) international high level radioactive waste management conference, Las Vegas, NV (United States), 28 Apr - 3 May 1991

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  • Other: DE91015143
  • Report No.: UCRL-JC--107287
  • Report No.: CONF-910435--91
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 138146
  • Archival Resource Key: ark:/67531/metadc624220

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • May 1, 1991

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 17, 2016, 2:21 p.m.

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Bates, J.K.; Ebert, W.L.; Bradley, J.P. & Bourcier, W.L. Mechanistic interpretation of glass reaction: Input to kinetic model development, article, May 1, 1991; California. (digital.library.unt.edu/ark:/67531/metadc624220/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.