Accession Number : AD0440439


Title :   NEW HIGH TEMPERATURE INFRARED TRANSMITTING GLASSES


Descriptive Note : Semiannual technical summary rept. no. 3, 1 Nov 1963-30 Apr 1964


Corporate Author : TEXAS INSTRUMENTS INC DALLAS


Personal Author(s) : Brau, Maurice J ; Hilton, A Ray


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/440439.pdf


Report Date : 30 Apr 1964


Pagination or Media Count : 38


Abstract : Glasses formed in the Ge-P-Te system have moderately high softening points (as high as 390 C) and are essentially transparent to the IR out to 20 microns wavelength. Their refractive indexes are greater than 3, and their glassforming composition region is the smallest of all the systems evaluated. With the Si-As-Te and Ge-As-Te glass systems as bases, the effect on the optical properties, softening point, and hardness was determined when P, Sb, S, and Se were substituted into the glasses. Efforts to definitely establish the origin of the undesirable absorptions in the most promising glasses will increase. (Author)


Descriptors :   *GLASS , *INFRARED OPTICAL MATERIALS , *INFRARED WINDOWS , THERMAL PROPERTIES , HIGH TEMPERATURE , PHASE STUDIES , SILICON , TIN , SULFUR , GERMANIUM , PHOSPHORUS , ANTIMONY , ARSENIC , HARDNESS , TELLURIUM , REFRACTORY MATERIALS , CHALCOGENS , SELENIUM


Subject Categories : Optics
      Thermodynamics


Distribution Statement : APPROVED FOR PUBLIC RELEASE