LOW-TEMPERATURE THERMOPILE AND METHOD FOR IT MANUFACTURING Russian patent published in 1994 - IPC

FIELD: electrical engineering, thermoelectric converters manufacturing. SUBSTANCE: low-temperature thermopile has branches made from three-component bismuth-telluride alloy, commutation layers made from iron or ferric alloy which are fixed on branches end-faces and electrically insulating separator covered by middle part of commutation layer. Commutating contacts are connected with commutation layers and relation of commutation layer thickness to commutating contact height is equal to 1: 3-1: 10. While thermopile fabricating its branches are pressed from semiconductor material powder at normal temperature and then its end-faces are covered with commutation layers made by gas-plasma flame spraying using, finally, commutating contacts are building-up too. After this processing full construction is hardening by calcining or hot-pressurizing. Gas-plasma flame spraying optimal regime parameters are brought in invention prescription. EFFECT: more effective fabricating processing. 10 cl, 3 dwg