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Nanocrystallization of TiO 2 Anatase Phase in Hydrophobic BaO – TiO 2 – B 2 O 3 Glass System
Author(s) -
Paramesh Gadige,
Varma Kalidindi B. R.
Publication year - 2012
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.1551-2916.2012.05309.x
Subject(s) - nanocrystalline material , ternary operation , anatase , nanocrystal , phase (matter) , chemistry , materials science , mineralogy , crystallography , nanotechnology , photocatalysis , organic chemistry , catalysis , computer science , programming language
Transparent colorless glasses in the ternary BaO–TiO 2 –B 2 O 3 system were fabricated via conventional melt‐quenching technique. The glasses with certain molar concentrations of BaO and TiO 2 on heat treatment at appropriate temperatures yielded nanocrystalline phase of TiO 2 associated with the crystallite size in the 5–15 nm range. Nanocrystallized glasses exhibited high refractive index ( n  = 2.15) measured at λ = 543 nm. These glasses were found to be hydrophobic in nature associated with the contact angle of 90 o . These high‐index glass nanocrystal composites would be of potential interest for optical device applications.

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