Characteristics of uranium carbonitride microparticles synthesized using different reaction conditions

Chinthaka M. Silva; Terrence B. Lindemer; Stewart R. Voit; Rodney D. Hunt; Theodore M. Besmann; Kurt A. Terrani; Lance L. Snead

doi:10.1016/j.jnucmat.2014.08.038

Characteristics of uranium carbonitride microparticles synthesized using different reaction conditions

Chinthaka M. Silva
, Terrence B. Lindemer
, Stewart R. Voit
, Rodney D. Hunt
, Theodore M. Besmann
, Kurt A. Terrani
, Lance L. Snead

Fuel Cycle Chemical Technology

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Three sets of experimental conditions were tested to synthesize uranium carbonitride (UC₁_-_xN_x) kernels from gel-derived urania-carbon microspheres. Primarily, three sequences of gases were used, N₂ to N₂-4%H₂ to Ar, Ar to N₂ to Ar, and Ar-4%H₂ to N₂-4%H₂ to Ar-4%H₂. Physical and chemical characteristics such as geometrical density, phase purity, and chemical compositions of the synthesized UC₁_-_xN_x were measured. Single-phase kernels were commonly obtained with densities generally ranging from 85% to 93% TD and values of x as high as 0.99. In-depth analysis of the microstrutures of UC₁_-_xN_x has been carried out and is discussed with the objective of large batch fabrication of high density UC₁_-_xN_x kernels.

Original language	English
Pages (from-to)	405-412
Number of pages	8
Journal	Journal of Nuclear Materials
Volume	454
Issue number	1
DOIs	https://doi.org/10.1016/j.jnucmat.2014.08.038
State	Published - Nov 2014

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title = "Characteristics of uranium carbonitride microparticles synthesized using different reaction conditions",

abstract = "Three sets of experimental conditions were tested to synthesize uranium carbonitride (UC1-xNx) kernels from gel-derived urania-carbon microspheres. Primarily, three sequences of gases were used, N2 to N2-4\%H2 to Ar, Ar to N2 to Ar, and Ar-4\%H2 to N2-4\%H2 to Ar-4\%H2. Physical and chemical characteristics such as geometrical density, phase purity, and chemical compositions of the synthesized UC1-xNx were measured. Single-phase kernels were commonly obtained with densities generally ranging from 85\% to 93\% TD and values of x as high as 0.99. In-depth analysis of the microstrutures of UC1-xNx has been carried out and is discussed with the objective of large batch fabrication of high density UC1-xNx kernels.",

author = "Silva, \{Chinthaka M.\} and Lindemer, \{Terrence B.\} and Voit, \{Stewart R.\} and Hunt, \{Rodney D.\} and Besmann, \{Theodore M.\} and Terrani, \{Kurt A.\} and Snead, \{Lance L.\}",

year = "2014",

month = nov,

doi = "10.1016/j.jnucmat.2014.08.038",

language = "English",

volume = "454",

pages = "405--412",

journal = "Journal of Nuclear Materials",

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publisher = "Elsevier",

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TY - JOUR

T1 - Characteristics of uranium carbonitride microparticles synthesized using different reaction conditions

AU - Silva, Chinthaka M.

AU - Lindemer, Terrence B.

AU - Voit, Stewart R.

AU - Hunt, Rodney D.

AU - Besmann, Theodore M.

AU - Terrani, Kurt A.

AU - Snead, Lance L.

PY - 2014/11

Y1 - 2014/11

N2 - Three sets of experimental conditions were tested to synthesize uranium carbonitride (UC1-xNx) kernels from gel-derived urania-carbon microspheres. Primarily, three sequences of gases were used, N2 to N2-4%H2 to Ar, Ar to N2 to Ar, and Ar-4%H2 to N2-4%H2 to Ar-4%H2. Physical and chemical characteristics such as geometrical density, phase purity, and chemical compositions of the synthesized UC1-xNx were measured. Single-phase kernels were commonly obtained with densities generally ranging from 85% to 93% TD and values of x as high as 0.99. In-depth analysis of the microstrutures of UC1-xNx has been carried out and is discussed with the objective of large batch fabrication of high density UC1-xNx kernels.

AB - Three sets of experimental conditions were tested to synthesize uranium carbonitride (UC1-xNx) kernels from gel-derived urania-carbon microspheres. Primarily, three sequences of gases were used, N2 to N2-4%H2 to Ar, Ar to N2 to Ar, and Ar-4%H2 to N2-4%H2 to Ar-4%H2. Physical and chemical characteristics such as geometrical density, phase purity, and chemical compositions of the synthesized UC1-xNx were measured. Single-phase kernels were commonly obtained with densities generally ranging from 85% to 93% TD and values of x as high as 0.99. In-depth analysis of the microstrutures of UC1-xNx has been carried out and is discussed with the objective of large batch fabrication of high density UC1-xNx kernels.

UR - https://www.scopus.com/pages/publications/84908179257

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DO - 10.1016/j.jnucmat.2014.08.038

M3 - Article

AN - SCOPUS:84908179257

SN - 0022-3115

VL - 454

SP - 405

EP - 412

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 1

ER -

Characteristics of uranium carbonitride microparticles synthesized using different reaction conditions

Abstract

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