Premium
Spark Plasma Sintering of Hexagonal Structure Yb 3+ ‐Doped Sr 5 ( PO 4 ) 3 F Transparent Ceramics
Author(s) -
Chen Shi,
Wu Yiquan,
Yang Yan
Publication year - 2013
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.12362
Subject(s) - spark plasma sintering , materials science , analytical chemistry (journal) , crystallite , microstructure , ceramic , doping , ytterbium , sintering , grain size , chemistry , optoelectronics , composite material , metallurgy , chromatography
Ytterbium‐doped Sr 5 ( PO 4 ) 3 F 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.