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Clathrate Compounds, Thermoelectric Conversion Elements, and Methods For Producing the Same

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  • Publication Date:
    September 11, 2008
  • معلومة اضافية
    • Document Number:
      20080216884
    • Appl. No:
      10/587718
    • Application Filed:
      January 24, 2005
    • نبذة مختصرة :
      BaAuGe, BaAuGaGe, BaPtGe, BaPdGe, BaPdGaGe, BaPdGaSi, BaPtGaSi, BaCuGaGe, and BaAgGaGe clathrate compounds, and thermoelectric conversion element comprising the clathrate compounds. Methods for producing thermoelectric conversion elements are also provided, comprising melting, heat-treating, particle-forming, and sintering processes.
    • Inventors:
      Shibata, Yasufumi (Shizuoka, JP); Anno, Hiroaki (Yamaguchi, JP); Matsubara, Kakuei (Yamaguchi, JP)
    • Claim:
      1. A clathrate compound represented by the following composition formula (1): Ba8AuaGe46-a(16/3≦a≦6)  Composition formula (1).
    • Claim:
      2. A clathrate compound represented by the following composition formula (2): Ba8AubGacGe46-b-c(5≦b<16/3,c=16−3b)  Composition formula (2).
    • Claim:
      3. A clathrate compound represented by the following composition formula (3): Ba8AudGaeGe46-d-e(0≦d<5,e=16−3d)  Composition formula (3).
    • Claim:
      4. A clathrate compound represented by the following composition formula (4): Ba8AufGa6-fGe40(0
    • Claim:
      5. A clathrate compound represented by the following composition formula (5): Ba8PtgGe46-g(4
    • Claim:
      6. A clathrate compound represented by the following composition formula (6): Ba8PdhGe46-h(5
    • Claim:
      7. A clathrate compound represented by the following composition formula (7): Ba8PdiGajGe46-i-j(0≦i≦4,j=16−4i)  Composition formula (7).
    • Claim:
      8. A clathrate compound represented by the following composition formula (8): Ba8AkGa1Si46-k-1(0≦k≦4,l=16−4k)  Composition formula (8) wherein A in Composition formula (8) represents Pd or Pt.
    • Claim:
      9. A clathrate compound represented by the following composition formula (9): Ba8EmGa6-mGe40(5
    • Claim:
      10. A clathrate compound represented by the following composition formula (10): Ba8GnGa6-nGe40(0
    • Claim:
      11. A clathrate compound represented by the following composition formula (11): Ba8J0GapGe46-o-p(0≦o≦16/3,p=16−3o)  Composition formula (11) wherein J in Composition formula (11) represents Cu or Ag.
    • Claim:
      12. A thermoelectric conversion element comprising a sintered body of the clathrate compound of claim 1.
    • Claim:
      13. A thermoelectric conversion element comprising a sintered body of the clathrate compound of claim 2.
    • Claim:
      14. A thermoelectric conversion element comprising a sintered body of the clathrate compound of claim 3.
    • Claim:
      15. A thermoelectric conversion element comprising a sintered body of the clathrate compound of claim 4.
    • Claim:
      16. A thermoelectric conversion element comprising a sintered body of the clathrate compound of claim 5.
    • Claim:
      17. A thermoelectric conversion element comprising a sintered body of the clathrate compound of claim 6.
    • Claim:
      18. A thermoelectric conversion element comprising a sintered body of the clathrate compound of claim 7.
    • Claim:
      19. A thermoelectric conversion element comprising a sintered body of the clathrate compound of claim 8.
    • Claim:
      20. A thermoelectric conversion element comprising a sintered body of the clathrate compound of claim 9.
    • Claim:
      21. A thermoelectric conversion element comprising a sintered body of the clathrate compound of claim 10.
    • Claim:
      22. A thermoelectric conversion element comprising a sintered body of the clathrate compound of claim 11.
    • Claim:
      23. A method for producing a thermoelectric conversion element comprising a sintered body of a clathrate compound whose constituent atoms include Ba and Ge, the method comprising: melting elements which are to constitute the clathrate compound so as to synthesize the clathrate compound; heat-treating the synthesized clathrate compound at 650 to 900° C. for 50 to 250 hours; forming particles from the heat-treated clathrate compound; and sintering the particles.
    • Current U.S. Class:
      136/239
    • Current International Class:
      01; 22
    • الرقم المعرف:
      edspap.20080216884