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Title: Bimetallic strip for low temperature use

Abstract

There is provided a class of mechanically pre-stressed structures, suitably bi-layer strips comprising a layer of group 5 transition metals in intimate contact with a layer of an intermetallic compound of said transition metals with certain group 3A, 4A or 5A metals or metalloids suitably gallium, indium, silicon, germanium, tin, arsenic or antimony. The changes of Young's modulus of these bi-layered combinations at temperatures in the region of but somewhat above absolute zero provides a useful means of sensing temperature changes. Such bi-metallic strips may be used as control strips in thermostats, in direct dial reading instruments, or the like. The structures are made by preparing a sandwich of a group 5B transition metal strip between the substantially thicker strips of an alloy between copper and a predetermined group 3A, 4A or 5A metal or metalloid, holding the three layers of the sandwich in intimate contact heating the same, cooling the same and removing the copper alloy and then removing one of the two thus formed interlayer alloys between said transition metal and the metal previously alloyed with copper.

Inventors:
 [1];  [2];  [3]
  1. (Yaphank, NY)
  2. (Poquott, NY)
  3. (Bellport, NY)
Issue Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY
OSTI Identifier:
863994
Patent Number(s):
4291105
Assignee:
United States of America as represented by United States (Washington, DC) BNL
DOE Contract Number:  
EY-76-C-02-0016
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
bimetallic; strip; temperature; provided; mechanically; pre-stressed; structures; suitably; bi-layer; strips; comprising; layer; transition; metals; intimate; contact; intermetallic; compound; 3a; 4a; 5a; metalloids; gallium; indium; silicon; germanium; arsenic; antimony; changes; modulus; bi-layered; combinations; temperatures; region; somewhat; absolute; zero; provides; useful; means; sensing; bi-metallic; control; thermostats; direct; dial; reading; instruments; preparing; sandwich; 5b; metal; substantially; thicker; alloy; copper; predetermined; metalloid; holding; layers; heating; cooling; removing; formed; interlayer; alloys; previously; alloyed; temperature change; temperature changes; transition metals; transition metal; intermetallic compound; intimate contact; copper alloy; metal strip; bimetallic strip; metallic strip; contact heat; metallic strips; metallic compound; substantially thick; /428/505/

Citation Formats

Bussiere, Jean F., Welch, David O., and Suenaga, Masaki. Bimetallic strip for low temperature use. United States: N. p., 1981. Web.
Bussiere, Jean F., Welch, David O., & Suenaga, Masaki. Bimetallic strip for low temperature use. United States.
Bussiere, Jean F., Welch, David O., and Suenaga, Masaki. Thu . "Bimetallic strip for low temperature use". United States. https://www.osti.gov/servlets/purl/863994.
@article{osti_863994,
title = {Bimetallic strip for low temperature use},
author = {Bussiere, Jean F. and Welch, David O. and Suenaga, Masaki},
abstractNote = {There is provided a class of mechanically pre-stressed structures, suitably bi-layer strips comprising a layer of group 5 transition metals in intimate contact with a layer of an intermetallic compound of said transition metals with certain group 3A, 4A or 5A metals or metalloids suitably gallium, indium, silicon, germanium, tin, arsenic or antimony. The changes of Young's modulus of these bi-layered combinations at temperatures in the region of but somewhat above absolute zero provides a useful means of sensing temperature changes. Such bi-metallic strips may be used as control strips in thermostats, in direct dial reading instruments, or the like. The structures are made by preparing a sandwich of a group 5B transition metal strip between the substantially thicker strips of an alloy between copper and a predetermined group 3A, 4A or 5A metal or metalloid, holding the three layers of the sandwich in intimate contact heating the same, cooling the same and removing the copper alloy and then removing one of the two thus formed interlayer alloys between said transition metal and the metal previously alloyed with copper.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

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