Hot-pressed chromium doped zinc sulfide infrared transparent ceramics

作者: Yiyu Li , Yin Liu , Vladimir V. Fedorov , Sergey B. Mirov , Yiquan Wu

DOI: 10.1016/J.SCRIPTAMAT.2016.07.027

关键词: Materials scienceTransparent ceramicsZinc sulfideWurtzite crystal structureMineralogyChromiumHot pressingCrystalliteMicrostructureAnalytical chemistrySphalerite

摘要: Abstract The present study, for the first time, reports successful consolidation of chromium doped zinc sulfide (ZnS) polycrystalline infrared (IR) transparent ceramics (maximum transmittance 67% at 11.6 μm) via hot pressing under vacuum. phase composition as-sintered Cr2+:ZnS was determined to be primarily cubic ZnS sphalerite, with a minor amount hexagonal wurtzite. Scanning electron microscopy (SEM) observation sintered showed highly consolidated microstructure. IR absorption and photoluminescence measurements revealed that Cr2+ ions are tetrahedrally coordinated within host lattice.

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