Thermoelectric conversion material, thermoelectric conversion element, and thermoelectric conversion module
AssigneeMitsubishi Materials Corporation
InventorYoshinobu NAKADA
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Abstract
A thermoelectric conversion material made of a sintered body containing a magnesium silicide as a major component includes: a magnesium silicide phase; and a magnesium oxide layer formed on a surface layer of the magnesium silicide phase, in which an aluminum concentrated layer having an Al concentration higher than an aluminum concentration in an inside of the magnesium silicide phase is formed between the magnesium oxide layer and the magnesium silicide phase, and the aluminum concentrated layer has a metallic aluminum phase including aluminum or an aluminum alloy.
Claims6
A thermoelectric conversion material made of a sintered body containing a magnesium silicide as a major component, the thermoelectric conversion material comprising:
- a magnesium silicide phase;
- and
- a magnesium oxide layer formed on a surface layer of the magnesium silicide phase,
- wherein an aluminum concentrated layer having an Al concentration higher than an aluminum concentration in an inside of the magnesium silicide phase is formed between the magnesium oxide layer and the magnesium silicide phase, and
- the aluminum concentrated layer has a metallic aluminum phase made of aluminum or an aluminum alloy.
Dependencies are inferred from the claim text.