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Home Azerbaijan Technologies New Manufacturing Technology for Development of Materials for Use in Thermoelectric Converters of Energy

New Manufacturing Technology for Development of Materials for Use in Thermoelectric Converters of Energy

Description

The technology of preparing of polycrystalline Bi2Te3-Sb2Te3 and Bi2Te3-Bi2Se3 system samples with the thermoelectric parameters close to parameters of single crystalline samples have been developed. In this method an opportunity of orientation of grains (formation of a texture) in thermoelectric material due to plastic deformation under the extrusion process is used, as a result of which the structure of the material comes nearer to structure of a single crystalline samples. With use of the new developed technology high-strength polycrystalline samples of Bi2Te3-Sb2Te3 and Bi2Te3-Bi2Se3 systems with high enough thermoelectric parameters close to parameters of single crystalline samples of these materials have been received.

Innovative Aspect and Main Advantages

A new technology of preparing of a polycrystalline thermoelectric material high thermoelectric efficiency and high mechanical durability has been developed. This was achieved by use of extrusion technology for formation of the texture in a polycrystalline sample and choosing optimal grain sizes, which enabled to obtain polycrystalline Bi2Te3-Sb2Te3 and Bi2Te3-Bi2Se3 systems materials with the thermoelectric parameters close to parameters of single crystalline samples, as well as achieve considerably higher mechanical durability of a material in comparison with single crystals. The developed technology due to technological simplicity and an opportunity of manufacturing of thermoelements of the necessary dimensions as well as high mechanical durability and thermoelectric characteristics of the material obtained is of interest for manufacture of various thermoelectric converters.

Areas of Application

Material for thermoelectric converters of the energy (thermoelectric coolers, thermoelectric generators, etc.)


Fig. 1 The block diagram of the process of reception
thermoelectric material by the extrusion method

Stage of Development

Manufacturing techniques of highly effective converters of energy on the basis of received mechanically durability thermoelectric materials with high thermoelectric quality factor have been developed and pilot samples have been made on their basis.

Contact Details

Institute of Physics
Contact person: Barkhalov Barkhal Shaban oglu
Address: 33, H. Javid Avenue, AZ1143, Baku, Azerbaijan
Tel.: (994 13) 432 5146
Fax: (994 12) 447 0456
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , This e-mail address is being protected from spambots. You need JavaScript enabled to view it

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