The effects of metal surface geometry on the formation of uranium hydride

C. A. Stitt; C. Paraskevoulakos; N. J. Harker; C. P. Jones; T. B. Scott

doi:10.1016/j.corsci.2015.05.010

The effects of metal surface geometry on the formation of uranium hydride

C. A. Stitt, C. Paraskevoulakos, N. J. Harker, C. P. Jones, T. B. Scott^*

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

19 Citations (Scopus)

Abstract

The present work examines the effect of surface geometry on the reaction between hydrogen gas and uranium metal, forming uranium hydride (UH<inf>3</inf>), a pyrophoric compound of significance to the civil nuclear industry. Hydride formation was initiated on uranium samples that had been patterned with a focused ion beam instrument to form surface arrays of triangular prisms and pillars with differing apex angles. Post reaction analysis indicated preferential hydride formation at the apex of these features. Additionally, once hydride formation had commenced the observed growth rate on the prisms appeared to accelerate in comparison to the rate exhibited on the surrounding surface.

Original language	English
Pages (from-to)	63-71
Number of pages	8
Journal	Corrosion Science
Volume	98
DOIs	https://doi.org/10.1016/j.corsci.2015.05.010
Publication status	Published - Sept 2015

Keywords

Geometry
Hydride
Local strain distribution
Uranium

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title = "The effects of metal surface geometry on the formation of uranium hydride",

abstract = "The present work examines the effect of surface geometry on the reaction between hydrogen gas and uranium metal, forming uranium hydride (UH3), a pyrophoric compound of significance to the civil nuclear industry. Hydride formation was initiated on uranium samples that had been patterned with a focused ion beam instrument to form surface arrays of triangular prisms and pillars with differing apex angles. Post reaction analysis indicated preferential hydride formation at the apex of these features. Additionally, once hydride formation had commenced the observed growth rate on the prisms appeared to accelerate in comparison to the rate exhibited on the surrounding surface.",

keywords = "Geometry, Hydride, Local strain distribution, Uranium",

author = "Stitt, {C. A.} and C. Paraskevoulakos and Harker, {N. J.} and Jones, {C. P.} and Scott, {T. B.}",

year = "2015",

month = sep,

doi = "10.1016/j.corsci.2015.05.010",

language = "English",

volume = "98",

pages = "63--71",

journal = "Corrosion Science",

issn = "0010-938X",

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TY - JOUR

T1 - The effects of metal surface geometry on the formation of uranium hydride

AU - Stitt, C. A.

AU - Paraskevoulakos, C.

AU - Harker, N. J.

AU - Jones, C. P.

AU - Scott, T. B.

PY - 2015/9

Y1 - 2015/9

N2 - The present work examines the effect of surface geometry on the reaction between hydrogen gas and uranium metal, forming uranium hydride (UH3), a pyrophoric compound of significance to the civil nuclear industry. Hydride formation was initiated on uranium samples that had been patterned with a focused ion beam instrument to form surface arrays of triangular prisms and pillars with differing apex angles. Post reaction analysis indicated preferential hydride formation at the apex of these features. Additionally, once hydride formation had commenced the observed growth rate on the prisms appeared to accelerate in comparison to the rate exhibited on the surrounding surface.

AB - The present work examines the effect of surface geometry on the reaction between hydrogen gas and uranium metal, forming uranium hydride (UH3), a pyrophoric compound of significance to the civil nuclear industry. Hydride formation was initiated on uranium samples that had been patterned with a focused ion beam instrument to form surface arrays of triangular prisms and pillars with differing apex angles. Post reaction analysis indicated preferential hydride formation at the apex of these features. Additionally, once hydride formation had commenced the observed growth rate on the prisms appeared to accelerate in comparison to the rate exhibited on the surrounding surface.

KW - Geometry

KW - Hydride

KW - Local strain distribution

KW - Uranium

UR - http://www.scopus.com/inward/record.url?scp=84931067856&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2015.05.010

DO - 10.1016/j.corsci.2015.05.010

M3 - Article (Academic Journal)

SN - 0010-938X

VL - 98

SP - 63

EP - 71

JO - Corrosion Science

JF - Corrosion Science

ER -

The effects of metal surface geometry on the formation of uranium hydride

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Keywords

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