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Crystallization Kinetics of Lithia‐Silica Glasses: Effect of Composition and Nucleating Agent
Author(s) -
RAY CHANDRA S.,
HUANG WENHAI,
DAY DELBERT E.
Publication year - 1987
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.1151-2916.1987.tb05714.x
Subject(s) - liquidus , crystallization , nucleation , kinetics , activation energy , mineralogy , materials science , thermodynamics , chemical engineering , chemistry , metallurgy , physics , alloy , quantum mechanics , engineering
The kinetics of crystallization of a 25Li 2 O · 75SiO 2 (wt%) glass doped with Pt, Cu, Au, TiO 2 , and P 2 O 5 were studied using nonisothermal techniques. The activation energy, E , and the frequency factor, v , for the overall crystallization process depended directly on the critical cooling rate for the glass formation, R c , of these glasses. The crystallization kinetics of several other glasses in the lithia‐silica system were also studied as a function of composition, critical cooling rate, and liquidus temperature, T m . E and v for these glasses were more dependent on the liquidus temperature than on R c .