Improvement of Thermoelectric-Properties for Mg-Based Quaternary Compounds With Doping via Bulk Mechanical Alloying

Abstract

In the magnesium base TE material design, the solid solution formation is favored for reduction of thermal conductivity by lattice scattering effect. Since magnesium and silicon have low relative density, Mg2Si-base TE compounds are expected to improve the specific figure-of-merit. In this project, new material processing route is proposed and developed to make material search for ternary or quartic TE compounds and to make mass-production of Mg2Si-base TE materials. Effect of Si, Ge and Sn on the thermoelectricity is also discussed to find an optimum way of TE-materials design.

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Document Details

Document Type
Technical Report
Publication Date
Feb 05, 2010
Accession Number
ADA514077

Entities

People

  • Tatsuhiko Aizawa

Organizations

  • Shibaura Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Alloys
  • Chemical Reactions
  • Conductivity
  • Electrical Conductivity
  • Electron Microscopy
  • Elements
  • Figure Of Merit
  • Heat Energy
  • Hot Pressing
  • Mass Production
  • Materials
  • Materials Processing
  • Mixtures
  • Production
  • Solid Solutions
  • Specific Heat
  • Thermal Conductivity

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
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  • Systems Analysis and Design