High‐entropy transparent fluoride laser ceramics | Zendy

Chen Xianqiang | Zendy; Wu Yiquan | Zendy

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High‐entropy transparent fluoride laser ceramics

Author(s) -

Chen Xianqiang,

Wu Yiquan

Publication year - 2020

Publication title -

journal of the american ceramic society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.9

H-Index - 196

eISSN - 1551-2916

pISSN - 0002-7820

DOI - 10.1111/jace.16842

Subject(s) - materials science , ceramic , scanning electron microscope , analytical chemistry (journal) , photoluminescence , transparent ceramics , transmittance , lattice constant , mineralogy , grain size , microstructure , optics , diffraction , composite material , optoelectronics , chemistry , physics , chromatography

For the first time, a transparent high‐entropy fluoride laser ceramic has been prepared and characterized. X‐ray diffraction (XRD) analysis of a CeNdCaSrBaF 12 (CNCSBF) transparent ceramic consolidated by vacuum hot pressing (VHP) reveals that Ce 3+ , Nd 3+ , Ca 2+ , Sr 2+ , and Ba 2+ have formed a single‐phased fluorite solid solution, with a lattice constant of 5.826 Å. Bulk density measurements produced a value of 6.15 g/cm 3 . Scanning electron microscopy (SEM) analysis of the ceramic revealed a uniform distribution of grain sizes in the material, with the average grain size being approximately 20 μm. The material exhibits a maximum in‐line transmittance of approximately 60% at 1000 nm. A near‐infrared range photoluminescence (PL) emission band was observed at 1057 nm, with a visible‐range PL emission band being located at 440 nm.

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