Wet‐Route Synthesis and Characterization of Yb:CaF2 Optical Ceramics. Issue 6 (23rd March 2016)

• Record Type: Journal Article
• Authors: Sarthou, Julia; Aballéa, Pierre; Patriarche, Gilles; Serier‐Brault, Hélène; Suganuma, Akiko; Gredin, Patrick; Mortier, Michel
• Editors: Riman, R.
• Is Part Of: Journal of the American Ceramic Society. Volume 99:Issue 6(2016)
• Page Start: 1992
• Page End: 2000
• Publication Date: 2016-03-23
• Subjects: Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.14216
• Languages: English
• ISSNs: 0002-7820

Abstract

Abstract : This paper reports a new strainless fabrication method for ytterbium‐doped CaF2 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.