Physics based models for metal hydride particle morphology, distribution, and effective thermal conductivity

Kyle C. Smith, Timothy S. Fisher

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper describes a modeling approach to target aspects of heat conduction in metal hydride powders that are essential to metal hydrides as viable H2 storage media, including particle morphology distribution, size distribution, particle packing properties at specified solid fraction, and effective thermal conductivity. An isotropic fracture model is presented that replicates features of particle size and shape distributions observed experimentally. The discrete element method is used to simulate evolution of metal hydride particle contact networks during quasi-static consolidation of decrepitated metal hydride powders. Finally, the effective thermal conductivity of such a powder is modeled assuming that contact conductance is the same for each interparticle contact.

Original languageEnglish (US)
Title of host publicationNanoscale Heat Transport - From Fundamentals to Devices
PublisherMaterials Research Society
Number of pages6
ISBN (Print)9781615677832
StatePublished - 2009
Externally publishedYes
Event2009 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 13 2009Apr 17 2009

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Other2009 MRS Spring Meeting
Country/TerritoryUnited States
CitySan Francisco, CA

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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