Skip to main navigation Skip to search Skip to main content

First principles study on ground state properties of UaL 2

  • J. I. Ranasinghe
  • , Linu Malakkal
  • , Ericmoore Jossou
  • , B. Szpunar
  • , J. A. Szpunar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Uranium di-aluminide (UAl2) has become the subject for numerous studies owing to the possible application as a fuel in the nuclear reactors due to its high uranium density (6.64 g-U/cm3) and high melting temperature (1860 K). Therefore, advancement of knowledge of its electronic structure and structural details are very important for the design of a future fuel. In this study, we perform systematic density functional theory (DFT) study on the electronic properties and the phonon structure of UAl2. Crystal structure and electronic structure have been evaluated by using first principles code Quantum ESPRESSO (QE). Phonon contribution to the total thermal conductivity is simulated with the aid of ShengBTE code. The force constants required as inputs for the ShengBTE code are evaluated using QE and Phonopy codes. This study confirms the structural stability of UAl2 and the dominant role of phonons in deciding thermal conductivity at the ground state.

Original languageEnglish
Title of host publicationThe Nuclear Future
Subtitle of host publicationChallenges and Innovaion - 38th Annual CNS Conference and 42nd CNS/CNA Student Conference
PublisherCanadian Nuclear Society
ISBN (Electronic)9781926773278
StatePublished - 2018
Externally publishedYes
Event38th Annual Conference of the Canadian Nuclear Society and 42nd Annual CNS/CNA Student Conference - The Nuclear Future: Challenges and Innovaion - Saskatoon, Canada
Duration: Jun 3 2018Jun 6 2018

Publication series

NameThe Nuclear Future: Challenges and Innovaion - 38th Annual CNS Conference and 42nd CNS/CNA Student Conference

Conference

Conference38th Annual Conference of the Canadian Nuclear Society and 42nd Annual CNS/CNA Student Conference - The Nuclear Future: Challenges and Innovaion
Country/TerritoryCanada
CitySaskatoon
Period06/3/1806/6/18

Fingerprint

Dive into the research topics of 'First principles study on ground state properties of UaL 2'. Together they form a unique fingerprint.

Cite this