The diffusion of plutonium in magnesium and magnesium alloys

Hodkin, D.J.; Mardon, P.G.

doi:10.1016/0022-3115(65)90116-9

Cited by 15 publications

(2 citation statements)

References 2 publications

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“…Knoch et al [19] found that this miscibility gap extends from $9.8 to $99.5 at.% Pu at 638°C. The solid solubility of Pu in (Mg) determined by Hodkin and Mardon [20] is about 2.2 at.% at 475°C. Ellinger et al [21] pointed out that there is no significant solid solubility of Mg in Pu in their construction of the binary phase diagram.…”

Section: The Mg-pu Systemmentioning

confidence: 99%

Thermodynamic modeling of the Mg–Pu and Cu–Pu systems

Wang

Fang

et al. 2009

Journal of Nuclear Materials

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Section: The Mg-pu Systemmentioning

confidence: 99%

Thermodynamic modeling of the Mg–Pu and Cu–Pu systems

Wang

Fang

et al. 2009

Journal of Nuclear Materials

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“…The potential for radiolytic production of H 2 from moist PuO 2 was recognised as soon there was a requirement to store plutonium powder outside of glovebox containment. As long ago as 1965 there was a report on pressurised sealed cans containing plutonium residues in the United Kingdom (UK) (Hodkin et al, 1965), and internationally there have been documented pressurisation events involving stored plutonium, with detailed reports most readily available in the public domain from the United States (US) (US DOE, 1979;Eller et al, 1999). These events led to pragmatic requirements for the conditioning of plutonium for storage in sealed cans based on a mixture of empirical studies and operational experience.…”

Section: Introductionmentioning

confidence: 99%

Radiation chemical processes in the water layer on the surface of PuO2

Sims,

Orr

2024

Front. Nucl. Eng.

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It is generally accepted that radiolysis of water on the surface of PuO2 by alpha particles is the source of H2 which can cause pressurisation in sealed storage containers if the material is not adequately conditioned before packing. The mechanisms for this have not been discussed in detail previously. Radiolysis mechanisms of bulk water are summarised and then applied to water at the surface of PuO2. It is shown that the radiolysis processes occurring on timescales of less than 1 ps after energy deposition could have an impact on the storage behaviour of the PuO2 and the potential gas volume generated. Some of the radiolysis products are highly reactive and would be expected to react with plutonium at the surface, affecting the usual water radiolysis processes. A corollary of this observation is that the surface should not be considered a completely crystalline PuO2 solid. It is also highlighted that whilst there are significant uncertainties in the radiolysis process at the PuO2 surface there are also significant uncertainties in H2 formation mechanisms in bulk water. Finally, methods to model the radiolysis process at the surface and the prospects for predictive models are briefly discussed with suggestions for future areas of development.

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The assessment of plutonium and fission product distribution in magnox cans from irradiated fuel elements

Hines¹,

Reed²

1966

J. Biochem. Toxicol.

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Mechanical sectioning and autoradiography have been used to establish the concentration profiles of fission products and plutonium in irradiated Magnox cans. The results obtained by the two methods were in good agreement and enabled an estimate to be made of 2 4 x lo1' Fm2sec1 for the diffusion coefficient of plutonium in Magnox ZR55 at 400". Progressive chemical dissolution methods were shown to be unsatisfactory for the determination of concentration profiles.

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The diffusion of plutonium in magnesium and magnesium alloys

Cited by 15 publications

References 2 publications

Thermodynamic modeling of the Mg–Pu and Cu–Pu systems

Thermodynamic modeling of the Mg–Pu and Cu–Pu systems

Radiation chemical processes in the water layer on the surface of PuO2

The assessment of plutonium and fission product distribution in magnox cans from irradiated fuel elements

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