Solid-state synthesis of magnesium base thermoelectric alloys via bulk mechanical alloying

Tatsuhiko Aizawa, Renbo Song

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Magnesium binary and ternary alloy systems have been popular as a thermoelectric light-weight alloy to be working in the medium temperature range. The solid-state reactivity via the bulk mechanical alloying is applied to yield these types of alloys. The diffusion-controlled solid-state synthesis is first stated as a process to yield a binary compound, Mg:X (X = Ge, Sn and Pb). This processing is further applied to directly synthesize several ternary thermoelectric alloys Mg 2Si 1-xGe x, Mg 2Si 1-ySn y and Mg 2Sn 1-zPb z for 0.0 < x, y, z < 1.0 and to evaluate their thermoelectric properties. Hot pressing is used to make full-dense billets and samples for thermoelectric measurement. The effect of germanium and tin contents on their Seebeck coefficient and band-gap is investigated to describe the p-n transition behavior and to understand the change of electric structure with solid solution formation.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages205-210
Number of pages6
Volume980
Publication statusPublished - 2007
Externally publishedYes
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: 2006 Nov 272006 Nov 30

Other

Other2006 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period06/11/2706/11/30

Fingerprint

Mechanical alloying
Magnesium
Germanium
Ternary alloys
Seebeck coefficient
Tin
Binary alloys
Hot pressing
Magnesium alloys
Solid solutions
Energy gap
Processing
Temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Aizawa, T., & Song, R. (2007). Solid-state synthesis of magnesium base thermoelectric alloys via bulk mechanical alloying. In Materials Research Society Symposium Proceedings (Vol. 980, pp. 205-210)

Solid-state synthesis of magnesium base thermoelectric alloys via bulk mechanical alloying. / Aizawa, Tatsuhiko; Song, Renbo.

Materials Research Society Symposium Proceedings. Vol. 980 2007. p. 205-210.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Aizawa, T & Song, R 2007, Solid-state synthesis of magnesium base thermoelectric alloys via bulk mechanical alloying. in Materials Research Society Symposium Proceedings. vol. 980, pp. 205-210, 2006 MRS Fall Meeting, Boston, MA, United States, 06/11/27.
Aizawa T, Song R. Solid-state synthesis of magnesium base thermoelectric alloys via bulk mechanical alloying. In Materials Research Society Symposium Proceedings. Vol. 980. 2007. p. 205-210
Aizawa, Tatsuhiko ; Song, Renbo. / Solid-state synthesis of magnesium base thermoelectric alloys via bulk mechanical alloying. Materials Research Society Symposium Proceedings. Vol. 980 2007. pp. 205-210
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