Spark Plasma Sintering of Hexagonal Structure Yb3+‐Doped Sr5(PO4)3F Transparent Ceramics
Abstract
Ytterbium‐doped Sr5(PO4)3F transparent ceramics have been developed through spark plasma sintering (SPS) with a low sintering temperature and short dwelling time. The XRD patterns show a polycrystalline hexagonal phase, and the TEM microstructure characterization indicates that the ceramics have a narrow grain size distribution which ranges from 40 to 200 nm, with an average grain size around 150 nm. The transmittance of a 2 mm thick ceramic sample is measured to be 74% at 1000 nm by a UV–Vis–NIR spectrophotometer. Furthermore, there is a strong emission peak around 1040 nm which has a lifetime of 1.06 ms and is exhibited by a PL spectrometer with the 980 nm laser diode excitation.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 25, 2013
- Source ID
- 10.1111/jace.12362
Entities
People
- Shi Chen
- Yan Yang
- Yiquan Wu
Organizations
- Air Force Office of Scientific Research
- Alfred University