Accession Number : ADD013536

Title :   Fabrication of Metal Matrix Composite Mirror.

Descriptive Note : Patent, Filed 13 Feb 86, patented 21 Apr 87,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Gubbay, Jacob D ; Hall, Edward J

Report Date : 21 Apr 1987

Pagination or Media Count : 7

Abstract : Fabrication of a high precision mirror using a discontinuous metal matrix composite is described. A metal matrix composite (MMC) is obtained by using one of the three methods described herein or any other method. The MMC material so obtained is machined to form a mirror substrate which is them coated and the coating so obtained is converted into the mirror surface. The mirror so obtained has better characteristics over the conventional high precision beryllium mirrors used for this purpose and is fabricated out of nontoxic material which is cheaper and more easily available than the beryllium metal.

Descriptors :   *PATENTS, *METAL MATRIX COMPOSITES, *MIRRORS, BERYLLIUM, COATINGS, METALS, PRECISION, SUBSTRATES, SURFACES, FABRICATION, ALUMINUM ALLOYS, SILICON CARBIDES

Subject Categories : Optics
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE