Thermo-electric modular structure and method of making same
Abstract
A method is presented for making a thermoelectric module wtth the aid of an insulating wafer having opposite metallized surfaces, a pair of similar equalizing sheets of metal, a hot-junction strap of metal, a thermoelectric element having hot- and cold-junction surfaces, and a radiator sheet of metal. The method comprises the following steps: brazing said equalizer sheets to said opposite metallized surfaces, respectively, of said insulating wafer with pure copper in a non-oxidizing ambient; brazing one surface of said hot-junction strap to one of the surfaces of said equalizing sheet with a nickel-gold alloy in a non- oxidizing ambient; and diffusion bonding said hot-junction surface of said thermoelectric element to the other surface of said hot-junction strap and said radiator sheet to said cold-junction surface of said thermoelectric element, said diffusion bonding being carried out in a non-oxidizing ambient, under compressive loading, at a temperature of about 550 deg C., and for about one-half hour. (Official Gazette)
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4338270
- Patent Number(s):
- 3787958
- Assignee:
- to United States Atomic Energy Commission
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
- NSA Number:
- NSA-29-024111
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 1965 Aug 18; Other Information: B23k31/02. Orig. Receipt Date: 30-JUN-74
- Country of Publication:
- United States
- Language:
- English
- Subject:
- N42100* -Engineering-Energy Conversion; *THERMOELECTRIC GENERATORS- FABRICATION; NESDPS Office of Nuclear Energy Space and Defense Power Systems
Citation Formats
Freedman, N S, Horsting, C W, Lawrence, W F, and Carrona, J J. Thermo-electric modular structure and method of making same. United States: N. p., 1974.
Web.
Freedman, N S, Horsting, C W, Lawrence, W F, & Carrona, J J. Thermo-electric modular structure and method of making same. United States.
Freedman, N S, Horsting, C W, Lawrence, W F, and Carrona, J J. Tue .
"Thermo-electric modular structure and method of making same". United States.
@article{osti_4338270,
title = {Thermo-electric modular structure and method of making same},
author = {Freedman, N S and Horsting, C W and Lawrence, W F and Carrona, J J},
abstractNote = {A method is presented for making a thermoelectric module wtth the aid of an insulating wafer having opposite metallized surfaces, a pair of similar equalizing sheets of metal, a hot-junction strap of metal, a thermoelectric element having hot- and cold-junction surfaces, and a radiator sheet of metal. The method comprises the following steps: brazing said equalizer sheets to said opposite metallized surfaces, respectively, of said insulating wafer with pure copper in a non-oxidizing ambient; brazing one surface of said hot-junction strap to one of the surfaces of said equalizing sheet with a nickel-gold alloy in a non- oxidizing ambient; and diffusion bonding said hot-junction surface of said thermoelectric element to the other surface of said hot-junction strap and said radiator sheet to said cold-junction surface of said thermoelectric element, said diffusion bonding being carried out in a non-oxidizing ambient, under compressive loading, at a temperature of about 550 deg C., and for about one-half hour. (Official Gazette)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 29 00:00:00 EDT 1974},
month = {Tue Jan 29 00:00:00 EDT 1974}
}