Elsevier

Scripta Materialia

Volume 125, December 2016, Pages 15-18
Scripta Materialia

Regular Article
Hot-pressed chromium doped zinc sulfide infrared transparent ceramics

https://doi.org/10.1016/j.scriptamat.2016.07.027Get rights and content

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 Cr2+: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 Cr2+ ions are tetrahedrally coordinated within the ZnS host lattice.

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Acknowledgements

Dr. Wu's group (Yiyu Li, Yin Liu, and Yiquan Wu) developed and processed hot-pressed ceramics. Dr. Mirov's group (Dr. Fedorov and Dr. Mirov) collaborated in spectroscopic characterizations of the samples.

Yiyu Li and Yiquan Wu gratefully acknowledge the Office of Naval Research (contract N00014-14-1-0546) for partially funding this research. Yin Liu and Yiquan Wu also gratefully acknowledge the US Air Force Office of Scientific Research (contract FA9550-14-1-0155) for partially funding their

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