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Thermal diffusivities of uniaxially cold-pressed Fe2Mo powders

  • Miyuki Hayashi EMAIL logo , Richard Rajter , Ricardo Morales and Seshadri Seetharaman
Published/Copyright: February 5, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 94 Issue 11

Abstract

Fe2Mo powders have been produced from Fe2MoO4 powders by gas – solid reduction using pure H2 gas at 1023 and 1173 K. The thermal diffusivity of the cold-pressed Fe2Mo powders having a relative density between 0.52 and 0.72 has been measured at room temperature both in air and in vacuum using the laser-flash method. A correlation was observed between the thermal diffusivity and the relative density for the powders reduced at different temperatures, regardless of the difference in microstructure of the powders. In order to explain the porosity dependence of the effective thermal conductivity, a new simple method developed based on the Ohm’s law models was used. The model successfully simulates the experimental data, and the thermal conductivity of bulk Fe2Mo was estimated as 10.8 W/mK.

Keywords: Thermal diffusivity; Porosity; Fe2Mo; Powder metallurgy
Prof. M. Hayashi Department of Materials Science and Engineering Royal Institute of Technology Stockholm 10044, Sweden Tel.: +46 8 790 8304 Fax: +46 8 790 0939

  1. The authors express their sincere thanks to Prof. A. K. Lahiri of Indian Institute of Science for his valuable discussion. The authors also thank Dr. I. Arvanitidis of Swedish Rock Engineering Research for his help with the computer calculation.

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Received: 2003-03-27
Published Online: 2022-02-05

© 2003 Carl Hanser Verlag, München

Articles in the same Issue

  1. Frontmatter
  2. Articles/Aufsätze
  3. Grain boundary diffusion and segregation of Ge in Cu: Radiotracer measurements in different kinetic regimes
  4. Thermal diffusivities of uniaxially cold-pressed Fe2Mo powders
  5. Dislocation structure and crystallite size distribution in plastically deformed Ti determined by X-ray peak profile analysis
  6. Modeling of texture evolution in copper under equal channel angular pressing
  7. Method for in situ texture investigation of recrystallization of Cu and Ti by high-energy synchrotron X-ray diffraction
  8. Contribution of dislocation substructures developed during cold rolling to the formation of rolling textures in Al–Mg alloys
  9. Controlled change in the plastic working conditions of metals in the plane state of strain
  10. Finite element analysis of the thermo-mechanical fatigue of DD8 single crystal nickel-based superalloy
  11. Factors influencing the extent of hydrogen-enhanced brittle cracking in a Cu-strengthened HSLA steel during monotonic loading
  12. Textures and precipitates in Ti-stabilized interstitial-free steel
  13. Coarsening kinetics of Cu particles in an Fe-1.5% Cu alloy
  14. Kinetics of the discontinuous precipitation of a liquid phase in Cu–In alloys
  15. Influence of homogenization on the processing map for hot working of as-cast Mg–2Zn–1Mn alloy
  16. Some characteristics of electrospark deposition
  17. Aktuelle Arbeiten in der Konstitution
  18. Notifications/Mitteilungen
  19. Personal/ Personelles
  20. DGM Events
https://doi.org/10.1515/ijmr-2003-0215
Keywords for this article
Thermal diffusivity; Porosity; Fe2Mo; Powder metallurgy

Articles in the same Issue

  1. Frontmatter
  2. Articles/Aufsätze
  3. Grain boundary diffusion and segregation of Ge in Cu: Radiotracer measurements in different kinetic regimes
  4. Thermal diffusivities of uniaxially cold-pressed Fe2Mo powders
  5. Dislocation structure and crystallite size distribution in plastically deformed Ti determined by X-ray peak profile analysis
  6. Modeling of texture evolution in copper under equal channel angular pressing
  7. Method for in situ texture investigation of recrystallization of Cu and Ti by high-energy synchrotron X-ray diffraction
  8. Contribution of dislocation substructures developed during cold rolling to the formation of rolling textures in Al–Mg alloys
  9. Controlled change in the plastic working conditions of metals in the plane state of strain
  10. Finite element analysis of the thermo-mechanical fatigue of DD8 single crystal nickel-based superalloy
  11. Factors influencing the extent of hydrogen-enhanced brittle cracking in a Cu-strengthened HSLA steel during monotonic loading
  12. Textures and precipitates in Ti-stabilized interstitial-free steel
  13. Coarsening kinetics of Cu particles in an Fe-1.5% Cu alloy
  14. Kinetics of the discontinuous precipitation of a liquid phase in Cu–In alloys
  15. Influence of homogenization on the processing map for hot working of as-cast Mg–2Zn–1Mn alloy
  16. Some characteristics of electrospark deposition
  17. Aktuelle Arbeiten in der Konstitution
  18. Notifications/Mitteilungen
  19. Personal/ Personelles
  20. DGM Events
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