Accession Number : ADD013264

Title :   Infrared Window Materials and Their Fabrication.

Descriptive Note : Patent, Filed 23 Aug 82, patented 24 Jul 84,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Chess, Daniel L ; White, William B

Report Date : 24 Jul 1984

Pagination or Media Count : 5

Abstract : The patent discusses process for making densified ternary sulfide ceramics as infrared window materials using sulfide compounds MLN2s4 belonging to the Th3P4, CaFe204 and spinel structure types. These refractory sulfides show good sinterability especially when fired in flowing hydrogen sulfide, and they can be densified by a combination of hot-pressing and hot-isostatic pressing into ceramic pieces approaching their theoretical density with closed pores and which have good transmission characteristics in the infrared region.

Descriptors :   *PATENTS, CERAMIC MATERIALS, SULFIDES, INFRARED OPTICAL MATERIALS

Subject Categories : Ceramics, Refractories and Glass
      Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE