Experimental features affecting the transparency of YAG ceramics

Year: 2011

Authors: Esposito L., Piancastelli A., Costa A. L., Serantoni M., Toci G., Vannini M.

Autors Affiliation: Istituto di Scienza e Tecnologia delle Ceramiche ISTEC CNR, via Granarolo 64, Faenza RA, Italy; Istituto di Fisica Applicata \”Nello Carrara\”, IFAC CNR, via Madonna del Piano 10, Sesto Fiorentino FI, Italy

Abstract: This article focuses on the importance of the ceramic production process for the final transparency and overall optical quality of materials to be used as laser hosts. YAG-based ceramics are prepared starting from commercial powders. The materials are prepared by reactive sintering in a clean atmosphere and under high vacuum. Nd or Yb are selected as active elements as the more appropriate for high energy and high peak power lasers. The powder type and treatment and the solvent removal technique are described in detail as well as the experimental conditions adopted during shaping. The influence of the pre-sintering and sintering cycles on the reaction among the involved oxides and on the microstructure after sintering is shown. The optical characterization is also reported. (C) 2010 Elsevier B.V. All rights reserved.

Journal/Review: OPTICAL MATERIALS

Volume: 33 (5)      Pages from: 713  to: 721

KeyWords: Ceramic materials; Characterization; High energy lasers; Neodymium lasers; Sintering; Transparency; Vacuum applications; Yttrium aluminum garnet; Neodymium; Ytterbium, Ceramic production process; Commercial powders; Experimental conditions; High peak power lasers; Laser hosts; Nd: YAG; Optical characterization; Transparent ceramic; Reactive sintering, Laser materials processing
DOI: 10.1016/j.optmat.2010.09.016

ImpactFactor: 2.023
Citations: 26
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