Radiation chemical effects in experiments to study the reaction of glass in an environment of gamma-irradiated air, groundwater, and tuff

Konynenburg, R.A. Van

doi:10.2172/59943

Cited by 13 publications

(24 citation statements)

References 20 publications

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“…The major effect is the formation of nitric acid from gaseous nitrogen in the atmosphere [121]. Models for glass durability can readily account for the effect of nitric acid on the pH and Eh of the local environment by adding some flux of nitric acid and hydrogen peroxide into the system at a rate determined from theoretical or experimental data on nitric acid and oxidant production rates.…”

Section: Effects Of Radiolysismentioning

confidence: 99%

Critical review of glass performance modeling

Bourcier

1994

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Section: Effects Of Radiolysismentioning

confidence: 99%

Critical review of glass performance modeling

Bourcier

1994

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“…Without the gas dilution it would be expected that the pH in the "blank" experiments would stabilize at M>.4, which is the carbonic acid-bicarbonate equilibrium pH at 90'C. 11 When glass is present, the pH values are always more basic than the corresponding "blank" experiments and there is little difference between the SRL U and SRL A experiments. This suggests that alkali release from the glass is affecting the solution chemistry.…”

Section: A Solution Analysesmentioning

confidence: 98%

Effect of gamma radiation on groundwater chemistry and glass leaching as related to the NNWSI repository site

Abrajano¹,

Bates²,

Ebert³

et al. 1986

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“…Reviews of radiation chemistry in moist air and moist airwater systems have been presented. 13,14 Barkatt et al 15 reported the results of experiments in which an airdeionized water system was gamma-irradiated at room temperature. The observed radiolytic species were nitric, formic, and oxalic acids and hydrogen peroxide.…”

Section: Projection Of Operating Environment For Waste Package Basketmentioning

confidence: 99%

“…The formic and oxalic acids formed from dissolved CO 2 in the liquid phase but only after the pH had been lowered to about 4 by nitric acid production. 14 In order to be able to perform scoping tests conveniently, at relatively low cost, and in a short time, we chose to simulate the effects of irradiation by ordinary chemical means. In so doing, we recognize that transient, free radical effects have been ignored.…”

Section: Projection Of Operating Environment For Waste Package Basketmentioning

confidence: 99%

Scoping corrosion tests on candidate waste package basket materials for the Yucca Mountain Project

Konynenburg¹,

Curits²,

Summers³

1998

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S.E. Summers March 1998This is an informal report intended primarily for internal or limited external distribution. The opinions and conclusions stated are those of the author and may or may not be those of the Laboratory. Work performed under the auspices of the U.S. Department of Energy by the Lawrence Livermore National Laboratory under Contract W-7405-ENG-48. DISCLAIMERThis document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes.This report has been reproduced directly from the best available copy. i Abstract A scoping corrosion test was performed on candidate waste package basket materials. The corrosion medium was a pH-buffered solution of chemical species expected to be produced by radiolysis. The test was conducted at 90°C for 96 hours. Samples included aluminum-, copper-, stainless steel-and zirconium-based metallic materials and several ceramics, incorporating neutron-absorbing elements. Sample weight losses and solution chemical changes were measured. Both corrosion of the host materials and dissolution of the neutron-absorbing elements were studied. The ceramics and the zirconium-based materials underwent only minor corrosion. The stainless steel-based materials performed well except for a welded sample. The aluminum-and copper-based materials exhibited the highest corrosion rates. Boron dissolution depends on its chemical form. Boron oxide and many metal borides dissolve readily in acidic solutions while high-chromium borides and boron carbide, though thermodynamically unstable, exhibit little dissolution in short times. The results of solution chemical analyses were consistent with this. Gadolinium did not dissolve significantly from monazite, and hafnium showed little dissolution from a variety of host materials, in keeping with its low solubility.

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Radiation chemical effects in experiments to study the reaction of glass in an environment of gamma-irradiated air, groundwater, and tuff

Cited by 13 publications

References 20 publications

Critical review of glass performance modeling

Critical review of glass performance modeling

Effect of gamma radiation on groundwater chemistry and glass leaching as related to the NNWSI repository site

Scoping corrosion tests on candidate waste package basket materials for the Yucca Mountain Project

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