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Wet‐Route Synthesis and Characterization of Yb:CaF 2 Optical Ceramics
Author(s) -
Sarthou Julia,
Aballéa Pierre,
Patriarche Gilles,
SerierBrault Hélène,
Suganuma Akiko,
Gredin Patrick,
Mortier Michel
Publication year - 2016
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.14216
Subject(s) - green body , fabrication , ceramic , materials science , transparent ceramics , sintering , nanoparticle , porosity , ytterbium , tape casting , characterization (materials science) , aqueous solution , homogeneous , casting , mineralogy , chemical engineering , composite material , metallurgy , doping , nanotechnology , optoelectronics , chemistry , medicine , alternative medicine , pathology , engineering , physics , thermodynamics
This paper reports a new strainless fabrication method for ytterbium‐doped CaF 2 laser ceramics involving no drying step before green body casting. The nanoparticles were kept in aqueous solution until green body shaping. Centrifugation was used to obtain correct compactness of the green body before sintering. Characterizations were conducted at different steps of the fabrication process. No grain boundaries oxidation was observed in the sintered ceramics although the nanoparticles were permanently maintained in water until they were sintered. Finally, these ceramics are more homogeneous and have less light scattering defects (no porosity), and present improved optical properties when compared to ceramics obtained from dried nanopowders.