Fabrication and optical characterizations of hot-pressed transparent SrF2/Nd:SrF2/SrF2 composite ceramic. Issue 1 (January 2021)

• Record Type: Journal Article
• Authors: Liu, Zuodong; Zhang, Shuyin; Dong, Pengyue; Yang, Yu; Wang, Qiqi; Yu, Yongsheng; Mei, Bingchu; Liu, Peng; Jing, Qiangshan
• Is Part Of: Journal of the European Ceramic Society. Volume 41:Issue 1(2021)
• Page Start: 768
• Page End: 774
• Publication Date: 2021-01
• Subjects: Strontium fluoride -- Transparent composite ceramic -- Neodymium -- Hot-pressed; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2020.08.007
• Languages: English
• ISSNs: 0955-2219

Abstract

Highlights: Transparent SrF2 /Nd:SrF2 /SrF2 composite ceramic was fabricated by HP sintering. The composite ceramic maintained a sandwich-like laminar configuration. The transmittance at 500 nm and 1200 nm are about 49.6 % and 62.3 %, respectively. Thermal conductivity of the composite ceramic at room temperature is 6.07 W/m.K. Abstract: A novel transparent SrF2 /Nd:SrF2 /SrF2 composite ceramic with sandwich-like laminar configuration was designed and successfully fabricated by the hot-pressed sintering method. The composite ceramic possesses an apparent transition interfacial (about 200 μm in thickness) between SrF2 and Nd:SrF2 layers, formed by non-uniform distribution of raw powders and the diffusion of Nd ions during the high temperature sintering. The average grain sizes of SrF2 and Nd:SrF2 layers are about 262.1 μm and 28.6 μm, respectively. For a 2-mm thick transparent SrF2 /Nd:SrF2 /SrF2 composite ceramic hot-pressed at 900 °C for 2 h, the transmittance at 500 nm and 1200 nm are about 49.6 % and 62.3 %, respectively. The microstructure, emission spectra and thermal conductivities of ceramics are also detected and studied.