Browsing by Subject "thermoelectric properties"

Now showing items 1-6 of 6

    • Article  

      Design of ball-milling experiments on Bi2Te3 thermoelectric material 

      Kanatzia, A.; Papageorgiou, Ch; Lioutas, Ch; Kyratsi, Theodora (2013)
      In this work, factorial ball-milling experiments have been applied to Bi2Te3 material, for the first time, aiming to investigate the effect of the main process parameters on the structural features and thermoelectric ...
    • Article  

      Electronic Structure and Thermoelectric Properties of Pseudoquaternary Mg2Si1-x-ySnxGey-Based Materials 

      Kutorasinski, K.; Tobola, J.; Kaprzyk, S.; Khan, A. U.; Kyratsi, Theodora (2014)
      A theoretical study is presented on complex pseudoternary Bi-doped Mg2Si1-x-ySnxGey materials, which have recently been revealed to reach high thermoelectric figures of merit (ZT) of ∼1.4. Morphological characterization ...
    • Conference Object  

      Low temperature synthesis and characterization of PbTe-based materials 

      Papageorgiou, C.; Giapintzakis, John; Kyratsi, Theodora (Affiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, 75 Kallipoleos Avenue, 1678 Nicosia, CyprusCorrespondence Address: Papageorgiou, C.Department of Mechanical and Manufacturing Engineering, University of Cyprus, 75 Kallipoleos Avenue, 1678 Nicosia, Cyprus, 2012)
      In the present work, PbTe and PbTe with Pb precipitates have been synthesized by low temperature synthesis. Selected materials were ball milled in order to explore the potential of this processing. The initial materials ...
    • Article  

      Low-temperature synthesis and thermoelectric properties of n-type PbTe 

      Papageorgiou, C.; Giapintzakis, John; Kyratsi, Theodora (2013)
      n-Type PbTe compounds were synthesized at temperatures as low as 430 C. After synthesis, the materials were ground, cold pressed and sintered at 600 C. The effect of this low-temperature synthesis on the structural features ...
    • Conference Object  

      Sintering process in ball-milled K2Bi8Se13 nano-composites 

      Ioannou, M.; Hatzikraniotis, E.; Lioutas, C.; Chrissafis, K.; Chung, D. Y.; Paraskevopoulos, K. M.; Kyratsi, Theodora (Affiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1678 Nicosia, CyprusAffiliation: Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceAffiliation: Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, United StatesCorrespondence Address: Ioannou, M.Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1678 Nicosia, Cyprus, 2012)
      K2Bi8Se13 material has many attractive features for thermoelectric applications. Recently, K2Bi 8Se13 based nanocomposite materials, consisting of nano-crystalline, micro-crystalline and amorphous phases, have been fabricated ...
    • Article  

      Thermoelectric properties of Mg2Si coatings deposited by pack cementation assisted process on heavily doped Si substrates 

      Stathokostopoulos, D.; Stefanaki, E. C.; Ioannou, M.; Polymeris, G. S.; Chaliampalias, D.; Pavlidou, E.; Kyratsi, Theodora; Paraskevopoulos, K. M.; Vourlias, G.; Hatzikraniotis, E. (2014)
      This work presents a study of structural and thermoelectric properties of Mg2Si coatings deposited on heavily doped p- and n-type Si substrates, at 650 C. The as-grown layers were smooth and uniform in thickness without ...