Open Access

Nuclear Materials and Energy, volume 35, pages 101441

Crystallographic characterization of U2CrN3: A neutron diffraction and transmission electron microscopy approach

S Patnaik ¹

Yulia Mishchenko ¹

Jennifer H Stansby ²

Andrea Fazi ³

Vanessa K. Peterson ⁴

Daniel Jädernäs ⁵

Mattias Thuvander ³

Kyle D Johnson ⁵

Edward G. Obbard ²

Denise A Lopes ^{1, 6}

Hide authors affiliations Show authors affiliations: 6 affiliations

KTH Royal institute of Technology, Stockholm, Sweden |

University of New south wales, Sydney, Australia |

Chalmers University of Technology, Göteborg, Sweden |

⁴

Australian Nuclear Science and Technology Organization, Lucas Heights, Australia |

⁵

Studsvik Nuclear AB, Nyköping, Sweden |

⁶

Westinghouse Electric Sweden AB, Västerås, Sweden |

Publication type: Journal Article

Publication date: 2023-06-01

Elsevier

Journal: Nuclear Materials and Energy

Quartile SCImago

Quartile WOS

Impact factor: 2.6

ISSN: 23521791

DOI: 10.1016/j.nme.2023.101441

Copy DOI

Materials Science (miscellaneous)

Nuclear and High Energy Physics

Nuclear Energy and Engineering

Abstract

In this study, neutron diffraction and transmission electron microscopy (TEM) have been implemented to study the crystallographic structure of the ternary phase U2CrN3 from pellet to nano scale respectively. Recently microstructural evaluation of this ternary phase has been performed for the first time in pellet condition, overcoming the Cr evaporation issue during the conventional sintering process. In this work for the first time, the crystallographic structure of the ordered ternary U2CrN3 phase, stabilized in pellet condition, has been obtained by implementing neutron diffraction. For this study, pellets of the composite material UN with 20 vol% CrN were fabricated by powder metallurgy by mixing UN and CrN powders followed by Spark Plasma Sintering (SPS). TEM was used to investigate the nanoscale structure with a thin lamella of the order of 100–140 nm produced by focused ion beam (FIB). The neutron data revealed the phase composition of the pellet to be primarily 54(8) wt.% U2CrN3, in good agreement with the stoichiometry of starting reagents (UN and CrN powder) and metallographic analysis. Neutron data analysis confirms that all the crystallographic sites in U2CrN3 phase are fully occupied reinforcing the fully stoichiometric composition of this phase, however, the position of the N at the 4i site was found to be closer to the Cr than previously thought. TEM and selected area electron diffraction rendered nano-level information and revealed the presence of nano domains along grain boundaries of UN and U2CrN3, indicating a formation mechanism of the ternary phase, where the phase likely nucleates as nano domains in UN grains from migration of Cr.

By date By citations

Top-30

Citations by journals

	1
Russian Chemical Reviews	Russian Chemical Reviews, 1, 100% Russian Chemical Reviews 1 publication, 100%
	1

Citations by publishers

	1
Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii	Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii, 1, 100% Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii 1 publication, 100%
	1

We do not take into account publications without a DOI.
Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
Statistics recalculated weekly.

Are you a researcher?

Create a profile to get free access to personal recommendations for colleagues and new articles.

Metrics

Cite this

GOST |

Cite this

GOST Copy

Patnaik S. et al. Crystallographic characterization of U2CrN3: A neutron diffraction and transmission electron microscopy approach // Nuclear Materials and Energy. 2023. Vol. 35. p. 101441.

GOST all authors (up to 50) Copy

Patnaik S., Mishchenko Y., Stansby J. H., Fazi A., Peterson V. K., Jädernäs D., Thuvander M., Johnson K. D., Obbard E. G., Lopes D. A. Crystallographic characterization of U2CrN3: A neutron diffraction and transmission electron microscopy approach // Nuclear Materials and Energy. 2023. Vol. 35. p. 101441.

RIS |

Cite this

RIS Copy

TY - JOUR

DO - 10.1016/j.nme.2023.101441

UR - https://doi.org/10.1016/j.nme.2023.101441

TI - Crystallographic characterization of U2CrN3: A neutron diffraction and transmission electron microscopy approach

T2 - Nuclear Materials and Energy

AU - Patnaik, S

AU - Mishchenko, Yulia

AU - Stansby, Jennifer H

AU - Fazi, Andrea

AU - Peterson, Vanessa K.

AU - Jädernäs, Daniel

AU - Thuvander, Mattias

AU - Johnson, Kyle D

AU - Obbard, Edward G.

AU - Lopes, Denise A

PY - 2023

DA - 2023/06/01 00:00:00

PB - Elsevier

SP - 101441

VL - 35

SN - 2352-1791

ER -

BibTex

Cite this

BibTex Copy

@article{2023_Patnaik,

author = {S Patnaik and Yulia Mishchenko and Jennifer H Stansby and Andrea Fazi and Vanessa K. Peterson and Daniel Jädernäs and Mattias Thuvander and Kyle D Johnson and Edward G. Obbard and Denise A Lopes},

title = {Crystallographic characterization of U2CrN3: A neutron diffraction and transmission electron microscopy approach},

journal = {Nuclear Materials and Energy},

year = {2023},

volume = {35},

publisher = {Elsevier},

month = {jun},

url = {https://doi.org/10.1016/j.nme.2023.101441},

pages = {101441},

doi = {10.1016/j.nme.2023.101441}

}

Found error?

Publisher

Elsevier

Journal

Nuclear Materials and Energy

Quartile SCImago

Quartile WOS

Impact factor

2.6

ISSN

23521791 (Print)