Measurement of initial dissolution rate of P0798 simulated HLW glass by using micro-reactor flow-through test method

H. Makigaki, Y. Inagaki, K. Idemitsu, T. Arima, S. Mitsui, T. Banba, K. Noshita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We applied a new type of flow-through test method using micro-reactor consisting of a simple test apparatus with compact size to measurement of the dissolution rate of a Japanese type of simulated waste glass (P0798 glass). In this test method, a solution flows through a microchannel (20 mm length, 2 mm width, 0.16 mm depth) in contact with a face of coupon shaped glass specimen, and the output solution is retrieved at certain intervals to be analyzed for determination of the glass dissolution rate. By using this test method the initial dissolution rate of glass matrix or forward dissolution rate was measured as a function of pH (3 to 11) and temperature (25°C to 90°C). The present test results indicated that the initial dissolution rate has 'V-shaped' pH dependence, and the effect of pH on the dissolution rate decreases with increase in temperature similar to the results measured by using the Single-pass flow-through (SPFT) method. The present test results also indicated that the dissolution of B is controlled by diffusion process and that of Si is controlled by surface reaction process.

Original languageEnglish
Title of host publicationScientific Basis for Nuclear Waste Management XXXIII
PublisherMaterials Research Society
Pages307-314
Number of pages8
ISBN (Print)9781605111667
DOIs
Publication statusPublished - 2009
Event32nd Symposium on Scientific Basis for Nuclear Waste Management - St. Petersburg, Russian Federation
Duration: May 24 2009May 29 2009

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1193
ISSN (Print)0272-9172

Other

Other32nd Symposium on Scientific Basis for Nuclear Waste Management
CountryRussian Federation
CitySt. Petersburg
Period5/24/095/29/09

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Makigaki, H., Inagaki, Y., Idemitsu, K., Arima, T., Mitsui, S., Banba, T., & Noshita, K. (2009). Measurement of initial dissolution rate of P0798 simulated HLW glass by using micro-reactor flow-through test method. In Scientific Basis for Nuclear Waste Management XXXIII (pp. 307-314). (Materials Research Society Symposium Proceedings; Vol. 1193). Materials Research Society. https://doi.org/10.1557/proc-1193-307