Hot-pressed chromium doped zinc sulfide infrared transparent ceramics. (December 2016)

• Record Type: Journal Article
• Authors: Li, Yiyu; Liu, Yin; Fedorov, Vladimir V.; Mirov, Sergey B.; Wu, Yiquan
• Is Part Of: Scripta materialia. Volume 125(2016)
• Page Start: 15
• Page End: 18
• Publication Date: 2016-12
• Subjects: Hot pressing -- Ceramics -- Optical spectroscopy -- Optical properties -- Chromium doped ZnS; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2016.07.027
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: The present study, for the first time, reports the successful consolidation of chromium doped zinc sulfide (ZnS) polycrystalline infrared (IR) transparent ceramics (maximum transmittance of 67% at 11.6 μm) via hot pressing under vacuum. The phase composition of the as-sintered Cr 2+ :ZnS ceramics was determined to be primarily cubic ZnS sphalerite, with a minor amount of hexagonal ZnS wurtzite. Scanning electron microscopy (SEM) observation of the sintered ceramics showed a highly consolidated microstructure. IR absorption and photoluminescence measurements revealed that the Cr 2+ ions are tetrahedrally coordinated within the ZnS host lattice. Graphical abstract: