Korea Institute of Science and Technology

Dow-Bin Hyun

Do-Hyung Kim

Jang-Won Kim

Ji-Won Choi

Hyun-Kwang Seok

Chong-Yun Kang

Ji-Young Byun

Seung-Hyub Baek

Seong-Keun Kim

Yoon-Bae Kim

Heon-Phil Ha

Jin-Sang Kim

Beomjin Kwon

Im-Jun Roh

A method for manufacturing a thermoelectric material is provided. According to the method, a first shaped body is formed from a thermoelectric powder, of which a crystal has a layer structure. An extruded body is formed by extruding the first shaped body. A plurality of cut-off pieces are formed by cutting the extruded body along a cross-section perpendicular to an extrusion direction. A second shaped body is formed by stacking and pressing the cut-off pieces along a direction perpendicular to the extrusion direction. According to the above, a thermoelectric ability of a thermoelectric material and an efficiency for manufacturing a thermoelectric module may be improved.

Method for manufacturing thermoelectric material having high efficiency

The present invention relates to a method for manufacturing a Fe&#x2014;Si alloy powder. A method for manufacturing a Fe&#x2014;Si alloy powder includes: providing a mixture of an AlOpowder, an active agent powder, a Si powder, and a Fe powder; heating the mixture with a temperature of 700&#xb0; C. to 1200&#xb0; C. in the hydrogen atomosphere; magnetically separating a Fe-containing material from the mixture; and separating a Fe&#x2014;Si alloy powder by soaking the Fe-containing material in an alkali solution. In the heating of the mixture, the Si powder is deposited on the surface of the Fe powder and diffused into the Fe powder.

Method for manufacturing Fe&#x2014;Si alloy powders

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Seoul, South Korea

Dow-Bin Hyun