研究目的
Investigating the fabrication and characterization of a transparent high‐entropy fluoride laser ceramic for potential applications in lasers, scintillators, windows, and UV/VUV lenses.
研究成果
The study successfully synthesized a high‐entropy fluoride CNCSBF transparent ceramic with promising optical properties, including a maximum in‐line transmittance of approximately 60% at 1000 nm and photoluminescence emission bands at 1057 nm and 440 nm. This new class of materials presents significant potential for various optical applications.
研究不足
The presence of micropores in the material, which act as scattering centers, limits the in‐line transmittance. Optimization of the sintering process or application of hot isostatic pressing could reduce these limitations.
1：Experimental Design and Method Selection:
The study employed a coprecipitation method for synthesizing CeNdCaSrBaF12 (CNCSBF) nanopowders, followed by consolidation via vacuum hot pressing (VHP).
2：Sample Selection and Data Sources:
Commercially sourced products were used as precursors for the synthesis.
3：List of Experimental Equipment and Materials:
Equipment included a vacuum hot press (OTF‐1200X‐VHP4, MTI), XRD (Bruker D2‐PHASER), SEM (FEI Quanta 200F), and UV‐Vis spectrophotometer (Thermo scientific; Evolution 220).
4：0). Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The process involved synthesis of nanopowders, calcination, VHP consolidation, and optical characterization.
5：Data Analysis Methods:
XRD analysis with Rietveld refinement, SEM for microstructure analysis, and UV‐Vis spectrophotometry for optical properties.
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