Phase transformations of Li2O–Al2O3–SiO2 glasses with CeO2 addition
Source abstract
Abstract
Abstract The nucleation and crystallization behavior of Li 2 O–Al 2 O 3 –SiO 2 glasses with addition of 5 wt.% CeO 2 were investigated. With CeO 2 addition, the glass transition temperature ( T g ) and the crystallization peak temperature ( T p ) decreased. The transformations of glass to β-quartz and of β-quartz to β-spodumene were accelerated by addition of CeO 2 . The values of crystallization activation energy ( E ) and Avrami exponent ( n ) determined by the Kissinger equations and the Augis–Bennett equation were 282±7 kJ/mol and 3.2±0.2, respectively, while without addition of CeO 2 , the values were 323±7 kJ/mol and 2.8±0.2. The results suggest that addition of 5 wt.% CeO 2 serving as a flux also promotes crystallization.
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Research context
OpenAlex topics: Glass properties and applications · Recycling and utilization of industrial and municipal waste in materials production · Pigment Synthesis and Properties
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References (25)
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