Accession Number : ADA265184


Title :   Precipitation Hardening of Infrared Transmitting ZnS Ceramics


Descriptive Note : Final rept.


Corporate Author : CALIFORNIA UNIV LOS ANGELES DEPT OF MATERIALS SCIENCE AND ENGINEERING


Personal Author(s) : Dunn, B ; Ardell, A J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a265184.pdf


Report Date : Jun 1993


Pagination or Media Count : 4


Abstract : Precipitation strengthening is a potentially attractive technique for hardening and toughening infrared transmitting materials. The controlled precipitation of a finely dispersed second phase offers the opportunity to improve mechanical properties without degrading optical properties. It is well established that the presence of an appropriate dispersion of second phase particles can improve the mechanical behavior of ceramics, and, by maintaining a particle size 100 nm, scattering losses in the infrared will be circumvented


Descriptors :   *ZINC SULFIDES , *CERAMIC MATERIALS , *INFRARED TRANSMITTERS , OPTICAL PROPERTIES , ANNEALING , PRECIPITATION , HARDENING , FRACTURE(MECHANICS) , TOUGHNESS , MECHANICAL PROPERTIES


Subject Categories : Ceramics, Refractories and Glass
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE