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Title: Simulations and Experimental Measurements of UO2 Thermal Conductivity

Spin-phonon interactions lead to low κ of UO2 (and behave like a defect), and this has implications for nuclear fuel performace. The inability to capture spin-phonon scattering leads to inherent errors. The interplay between magnetism and structural asymmetry in UO2 displays rich physics. Grain boundary structure plays a role which must be taken into account.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Idaho National Lab. (INL), Idaho Falls, ID (United States)
Publication Date:
OSTI Identifier:
1177984
Report Number(s):
LA-UR--15-22604
TRN: US1600126
DOE Contract Number:
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: Materials Research Society, Spring Meeting, San Francisco, CA (United States), 6-10 Apr 2015; Related Information: PowerPoint presentation
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE/LANL
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; URANIUM DIOXIDE; GRAIN BOUNDARIES; THERMAL CONDUCTIVITY; PHONONS; SPIN; SIMULATION; ASYMMETRY; CRYSTAL STRUCUTRE; CRYSTAL DEFECTS; ERRORS; INTERACTIONS; MAGNETISM; SCATTERING