Gold ink coating of thermocouple sheaths

Title: Gold ink coating of thermocouple sheaths

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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:

Ruhl, H Kenneth ^[1]

Schenectady, NY

Issue Date:: 1992-01-01

OSTI Identifier:: 868527

Patent Number(s):: 5161297

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

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C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C18/04 - Pretreatment of the material to be coated

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T29/49995 - Shaping one-piece blank by removing material

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L35/34 - Processes or apparatus peculiar to the manufacture or treatment of these devices or of parts thereof

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C18/08 - characterised by the deposition of metallic material

G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
G01K1/08 - Protective devices, e.g. casings

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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.

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                    Ruhl, H Kenneth. Gold ink coating of thermocouple sheaths.  United States.

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                    Ruhl, H Kenneth. Wed .  
        "Gold ink coating of thermocouple sheaths".  United States.  https://www.osti.gov/servlets/purl/868527.

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@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}

}

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A method is provided for applying a gold ink coating to a thermocouple sheath which includes the steps of electropolishing and oxidizing he surface of the thermoouple 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{degrees}F. Depending on the application, a portion of the gold coating covering the tip of the thermocouple sheath is removed by abrasion.
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