Pulverized and Intermixed Elements Sintering Method for (Bi, Sb)2(Te, Se)3 based n-type Thermoelectric Devices
Year: 1991
Type: article
Abstract: The Pulverized and Intermixed Elements Sintering (PIES) method, which can eliminate the use of a powder consisting of fully reacted alloys, is successfully achieved for the preparing of n-type (Bi, Sb)2(Te, Se)3 based thermoelectric devices for the first time. Hence the PIES method can substantially reduce the manufacturing cost of thermoelectric devices such as (Bi, Sb)2(Te, Se)3 based one.It is proved that the solid solution formation of PIES device is occurred in the sintering process and in order to get the useful thermoelectric performance a strong intermixing force such as a large centrifugal force in a planetary ball mill is necessary by X-ray diffractometory and measurement of thermoelectric properties.The thermoelectric figure of merit of PIES devices is about 1.7×10-31/K at 300K, and there is plenty of room for improvement in the PIES method to obtain higher figure of merit.
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2517929479