Please use this identifier to cite or link to this item: doi:10.22028/D291-24178
Title: Obtenção de elementos termoelétricos pelo processamento cerâmico de uma liga de Si-Ge
Other Titles: Preparation of thermoelectrical elements from SiGe alloy be ceramic processing
Author(s): Alves, Lucas Máximo
Aegerter, Michel A.
Language: (Other)
Year of Publication: 1994
OPUS Source: Anais / 38° Congresso Brasileiro de Cerâmica; 2° Encontro de Mineradores e Consumidores : [18 a 21 de junho de 1994, Blumenau, SC] / Associação Brasileira de Cerâmica. - Vol. 2. - São Paulo, SP : Associação Brasileira de Cerâmica, 1994, S. 885-890
SWD key words: Halbleiter
DDC notations: 500 Science
Publikation type: Conference Paper
Abstract: -
Semiconductors ceramics elements type-p have been prepared from silicon-gemanium alloy (Si80Ge20). Such elements are used in Radioisotopic Thermoelectric Generators (GTR) in energy conversion by thermoelectrical effects at high temperatures (~= 1000°C). The alloy was grown by the Czochralski technique under applied electric field, and by others fusion techniques for comparison. Samples with satisfactory homogeneity have been smashed and milled. The powder was then doped by mixing boron powder and pressed. The sintering was made by the PIES method (Pulverized and Intermixed Elements of Sintering), and by convencional ceramics processing. A sample prepared by Hot-Pressing Technique was used for comparison. The alloy grown by ECZ showed a good homogeneity. The density, grains regularity and chemical composition of the ceramics depend of the processing technique.
Link to this record: urn:nbn:de:bsz:291-scidok-23646
Date of registration: 7-Sep-2009
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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