Accession Number : ADD015158

Title :   Process for Producing Uniform Protective Coating of Silver Metal on Carbon/Carbon Composites.

Descriptive Note : Patent, Filed 3 Jul 90, patented 24 Sep 91,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Divecha, Amarnath P ; Ferrando, William A ; Hesse, Philip W ; Karmarkar, Subhash D

Report Date : 24 Sep 1991

Pagination or Media Count : 4

Abstract : This patent discloses a process for producing high temperature, oxidation resistant silver metal coatings on carbon/carbon composite structures by coating the carbon/carbon surfaces with molten silver nitrate at a temperature above the melting point of AgNO3 but below the decomposition temperature of AgNO3, and then heating the resulting uniform coating of molten AgNO3 at a temperature of from the decomposition temperature of AgNO3 to about 700 C, to decompose the molten AgNO3 and form a uniform coating of silver metal.

Descriptors :   CARBON CARBON COMPOSITES, COATINGS, COMPOSITE STRUCTURES, HIGH TEMPERATURE, MELTS, NITRATES, PATENTS, PROTECTIVE COATINGS, SILVER, SILVER COMPOUNDS, SURFACES

Subject Categories : Coatings, Colorants and Finishes

Distribution Statement : APPROVED FOR PUBLIC RELEASE