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Nanocrystallization in Fluorochlorozirconate Glass‐Ceramics
Author(s) -
Alvarez Carlos J.,
Liu Yuzi,
Leonard Russell L.,
Johnson Jacqueline A.,
PetfordLong Amanda K.
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.12540
Subject(s) - nanocrystal , nucleation , materials science , dopant , nanocomposite , ceramic , glass ceramic , transmission electron microscopy , photoluminescence , mineralogy , composite material , nanotechnology , chemical engineering , doping , chemistry , optoelectronics , organic chemistry , engineering
Heat treating fluorochlorozirconate ( FCZ ) glasses nucleates nanocrystals in the glass matrix, resulting in a nanocomposite glass‐ceramic that has optical properties suitable for use as a medical imaging plate. Understanding the way in which the nanocrystal nucleation proceeds is critical to controlling the optical behavior. The nucleation and growth of nanocrystals in FCZ glass‐ceramics was investigated with in situ transmission electron microscopy heating experiments. The experiments showed the nucleation and growth of previously unreported BaF 2 nanocrystals in addition to the expected BaCl 2 nanocrystals. Chemical analysis of the BaF 2 nanocrystals shows an association with the optically active dopant previously thought only to interact with BaCl 2 nanocrystals. The association of the dopant with BaF 2 crystals suggests that it plays a role in the photoluminescent ( PL ) properties of FCZ glass‐ceramics.