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Agglomeration Control of Nd:YAG Nanoparticles Via Freeze Drying for Transparent Nd:YAG Ceramics
Author(s) -
Gong Hua,
Tang DingYuan,
Huang Hui,
Ma Jan
Publication year - 2009
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/j.1551-2916.2009.02987.x
Subject(s) - materials science , transparent ceramics , ceramic , coprecipitation , neodymium , economies of agglomeration , yttrium , nanoparticle , sintering , yttrium aluminium garnet , particle size , dispersion (optics) , doping , mineralogy , metallurgy , laser , composite material , chemical engineering , nanotechnology , optics , optoelectronics , oxide , chemistry , physics , engineering
Neodymium‐doped yttrium aluminum garnet (Nd:YAG) nanopowders were synthesized by the carbonate coprecipitation method. The effects of freeze drying and conventional oven drying of the precursor on the agglomeration of the Nd:YAG nanopowders were compared. The optical properties of the Nd:YAG nanopowders and the corresponding sintered Nd:YAG transparent ceramics were also investigated. The Nd:YAG nanopowders synthesized from freeze‐dried precursor showed better dispersion and narrower particle size distribution compared with the powders synthesized from conventional oven drying. As a result, the Nd:YAG nanopowders synthesized from freeze‐dried precursor have good sinterability, and Nd:YAG transparent ceramics were fabricated by vacuum sintering at 1750°C for 5 h.