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Solid-State Phase Equilibria in the ZnS-Ga2S3 System
ZnS is commercially used as an infrared transmitting material because of its good optical transmission up to 12 micrometers and adequate mechanical strength. However, ceramics with improved fracture toughness, thermal-shock resistance and erosion resistance are absolutely essential for certain IR-window applications. There are several possible approaches to the engineering of ceramics with this combination of improved mechanical properties while retaining infrared transmittance comparable to that of ZnS. Our approach is to explore the possibilities of strengthening and toughening ZnS by the addition of dispersions of particles of a second-phase, with the dispersoids introduced into the microstructure by the appropriate heat-treatment of densified samples. (JES)
Solid-State Phase Equilibria in the ZnS-Ga2S3 System
ZnS is commercially used as an infrared transmitting material because of its good optical transmission up to 12 micrometers and adequate mechanical strength. However, ceramics with improved fracture toughness, thermal-shock resistance and erosion resistance are absolutely essential for certain IR-window applications. There are several possible approaches to the engineering of ceramics with this combination of improved mechanical properties while retaining infrared transmittance comparable to that of ZnS. Our approach is to explore the possibilities of strengthening and toughening ZnS by the addition of dispersions of particles of a second-phase, with the dispersoids introduced into the microstructure by the appropriate heat-treatment of densified samples. (JES)
Solid-State Phase Equilibria in the ZnS-Ga2S3 System
J. M. Zhang (author) / W. W. Chen (author) / A. J. Ardell (author) / B. Dunn (author)
1989
19 pages
Report
No indication
English
Optics & Lasers , Ceramic materials , Dispersions , Equilibrium(General) , Erosion resistance , Fracture(Mechanics) , Infrared radiation , Infrared transmitters , Light transmission , Mechanical properties , Microstructure , Particles , Phase studies , Solid state electronics , Strength(Mechanics) , Thermal resistance , Thermal shock , Toughness , Transmittance , Infrared optical materials , Infrared windows , Zinc sulfides , Gallim sulfides
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