Effects of radiations from transuranium nuclides on container surfaces. [/sup 242/Cm and /sup 252/Cf]
Description
Container materials for short-lived transuranium nuclides such as /sup 242/Cm and /sup 252/Cf may be implanted with sufficiently high concentrations of helium to cause surface blistering and other deleterious effects in some environments. Platinum and stainless steel surfaces adjacent to solid /sup 242/Cm-oxide deposits showed no blisters after room-temperature exposures, but formed porous, distorted layers on postexposure heating. Platinum surfaces adjacent to solid /sup 252/Cf-oxide deposits, in contrast, developed well-defined blisters with a variety of configurations during room-temperature exposures. Formation of the blisters at low temperatures was attributed to the fission-fragment-induced agglomeration of implanted helium, coupled with a stress-relieving transport … continued below
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60 pages
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McDonell, W.R. & Dillich, S. January 1, 1978.
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Savannah River Laboratory
Publisher Info: Du Pont de Nemours (E.I.) and Co., Aiken, S.C. (USA). Savannah River Lab.Place of Publication: Aiken, South Carolina
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Description
Container materials for short-lived transuranium nuclides such as /sup 242/Cm and /sup 252/Cf may be implanted with sufficiently high concentrations of helium to cause surface blistering and other deleterious effects in some environments. Platinum and stainless steel surfaces adjacent to solid /sup 242/Cm-oxide deposits showed no blisters after room-temperature exposures, but formed porous, distorted layers on postexposure heating. Platinum surfaces adjacent to solid /sup 252/Cf-oxide deposits, in contrast, developed well-defined blisters with a variety of configurations during room-temperature exposures. Formation of the blisters at low temperatures was attributed to the fission-fragment-induced agglomeration of implanted helium, coupled with a stress-relieving transport of atoms displaced by fission fragments into the blister walls. High-temperature exposures produced less well-defined globular protrusions at much lower concentrations of implanted helium. Immersion of glass or platinum specimens in dilute /sup 242/Cm or /sup 252/Cf solutions caused no significant surface damage, and on subsequent reaction with acidic or caustic reagents other than HF, the surfaces displayed no well-defined effect of the radiation exposures. HF solutions preferentially etched fission tracks in /sup 252/Cf-exposed glass specimens. No significant retention of /sup 252/Cf implanted in container surfaces by fission fragment impact was detected.
Physical Description
60 pages
Notes
Dep. NTIS, PC A04/MF A01.
Subjects
Keywords
- Actinide Compounds
- Actinide Isotopes
- Actinide Nuclei
- Alloys
- Alpha Decay Radioisotopes
- Californium 252
- Californium Compounds
- Californium Isotopes
- Californium Oxides
- Chalcogenides
- Chromium Alloys
- Chromium Steels
- Chromium-Nickel Steels
- Compatibility
- Containers
- Corrosion Resistant Alloys
- Cryogenic Fluids
- Curium 242
- Curium Compounds
- Curium Isotopes
- Curium Oxides
- Days Living Radioisotopes
- Dispersions
- Elements
- Etching
- Even-Even Nuclei
- Fission Fragments
- Fluids
- Glass
- Heat Resisting Alloys
- Heavy Nuclei
- Helium
- Hydrofluoric Acid
- Hydrogen Compounds
- Inorganic Acids
- Iron Alloys
- Iron Base Alloys
- Isotopes
- Materials
- Metals
- Mixtures
- Nickel Alloys
- Nonmetals
- Nuclear Fragments
- Nuclei
- Oxides
- Oxygen Compounds
- Particle Tracks
- Physical Radiation Effects
- Platinum
- Platinum Metals
- Radiation Effects
- Radioisotopes
- Rare Gases
- Solutions
- Stainless Steel-304L
- Stainless Steels
- Steels
- Surface Finishing
- Transition Elements
- Transuranium Compounds
- Years Living Radioisotopes 360106* -- Metals & Alloys-- Radiation Effects
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Source
- 8. conference on surface studies, Aiken, SC, USA, 9 May 1978
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- Report No.: DP-MS-78-9
- Report No.: CONF-780562-1
- Grant Number: EY-76-C-09-0001
- Office of Scientific & Technical Information Report Number: 7033506
- Archival Resource Key: ark:/67531/metadc1194299
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- January 1, 1978
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- July 2, 2018, 10:52 p.m.
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- March 1, 2021, 9:31 p.m.
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McDonell, W.R. & Dillich, S. Effects of radiations from transuranium nuclides on container surfaces. [/sup 242/Cm and /sup 252/Cf], article, January 1, 1978; Aiken, South Carolina. (https://digital.library.unt.edu/ark:/67531/metadc1194299/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.