Premium
Controlled Crystallization and Properties of Zirconium Fluoride‐Based Glass‐Ceramics
Author(s) -
Jewell John M.,
Friebele E. Joseph,
Aggarwal Ishwar D.
Publication year - 1996
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.1151-2916.1996.tb08988.x
Subject(s) - differential scanning calorimetry , crystallization , nucleation , materials science , zirconium , glass ceramic , fluoride , ceramic , mineralogy , isothermal process , chemical engineering , analytical chemistry (journal) , composite material , metallurgy , chemistry , inorganic chemistry , thermodynamics , physics , organic chemistry , chromatography , engineering
51ZrF 4 16BaF 2 , 5LaF 3 .3AlF 2 ,.20Li.F5PbF 2 , glasses were pre‐pared with CdF, additions of 0, 2, 5, and 7.5 mol%. The glasses with 2 and 5 mol% exhibited controllable nucleation upon heat treatment above the glass transformation tem‐perature. The nucleation and crystallization of glasses with 5 mol% CdF, were characterized using bulk heat treat‐ments, differential scanning calorimetry, and scanning elec‐tron microscopy. The isothermal crystallization of nucleated glasses resulted in the formation of a glass‐ceramic that was transparent in the infrared (>70% transmission) and more resistant to fracture than typical fluoride glasses.