Process for producing sintered thermoelectric semiconductor and

Details Process for producing sintered thermoelectric semiconductor and Process for producing sintered thermoelectric semiconductor and

1998-10-23

2000-11-14

Mai, Ngoclan

Batteries: thermoelectric and photoelectric

Thermoelectric

Having particular thermoelectric composition

136240, 136201, 136238, 419 47, 419 48, H01L 3512

Patent

active

06147293&

ABSTRACT:
A process for producing a sintered thermoelectric semiconductor includes a first step of forming bulk crystals of a thermoelectric semiconductor and a second step of hot extrusion. The second step includes substeps of placing the bulk crystals in the cavity of a heated extrusion die, pushing the ram into the cavity, thereby compressing and crushing the bulk crystals and turning them into a molten or semi-molten state, and finally extruding the molten or semi-molten crystals, thereby sintering them and forming a sintered thermoelectric semiconductor.

REFERENCES:
patent: 3162531 (1964-12-01), Yamano et al.
patent: 3220199 (1965-11-01), Hanlein et al.
patent: 3228805 (1966-01-01), Waseleski, Jr. et al.
patent: 4764212 (1988-08-01), Okumura et al.
patent: 5108515 (1992-04-01), Ohta et al.
patent: 5448109 (1995-09-01), Cauchy
patent: 5763293 (1998-06-01), Yamashita et al.

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