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Title: Gold ink coating of thermocouple sheaths

Abstract

A method is provided for applying a gold ink coating to a thermocouple sheath which includes the steps of electropolishing and oxidizing the surface of the thermocouple sheath, then dipping the sheath into liquid gold ink, and finally heat curing the coating. The gold coating applied in this manner is highly reflective and does not degrade when used for an extended period of time in an environment having a temperature over 1000.degree. F. Depending on the application, a portion of the gold coating covering the tip of the thermocouple sheath is removed by abrasion.

Inventors:
 [1]
  1. (Schenectady, NY)
Issue Date:
OSTI Identifier:
868527
Patent Number(s):
5161297
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
NPD843820AX
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
gold; coating; thermocouple; sheaths; method; provided; applying; sheath; steps; electropolishing; oxidizing; surface; dipping; liquid; finally; heat; curing; applied; manner; highly; reflective; degrade; extended; period; time; environment; temperature; 1000; degree; depending; application; portion; covering; tip; removed; abrasion; coating applied; thermocouple sheath; highly reflective; extended period; /29/205/427/

Citation Formats

Ruhl, H. Kenneth. Gold ink coating of thermocouple sheaths. United States: N. p., 1992. Web.
Ruhl, H. Kenneth. Gold ink coating of thermocouple sheaths. United States.
Ruhl, H. Kenneth. Wed . "Gold ink coating of thermocouple sheaths". United States. https://www.osti.gov/servlets/purl/868527.
@article{osti_868527,
title = {Gold ink coating of thermocouple sheaths},
author = {Ruhl, H. Kenneth},
abstractNote = {A method is provided for applying a gold ink coating to a thermocouple sheath which includes the steps of electropolishing and oxidizing the surface of the thermocouple sheath, then dipping the sheath into liquid gold ink, and finally heat curing the coating. The gold coating applied in this manner is highly reflective and does not degrade when used for an extended period of time in an environment having a temperature over 1000.degree. F. Depending on the application, a portion of the gold coating covering the tip of the thermocouple sheath is removed by abrasion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Patent:

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