ISSN:
1551-2916
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Devitrification of a frit (glass) based on the oxide system SiO2–Al2O3–ZnO–CaO was studied. The following major crystalline phases were identified: gahnite (ZnAl2O4), willemite (Zn2SiO4), and a solid solution exhibiting an anorthite structure. A kinetic model was used to fit the experimental results. The model was derived by assuming that a precursor phase with an anorthite crystalline structure devitrified first and subsequently decomposed to form gahnite, while willemite crystallized independently. The proposed model satisfactorily reproduced the amount of gahnite, willemite, and anorthite-type crystals that formed during firing. The equations developed allowed the prediction of the anorthite structure, gahnite, and willemite crystal volume fractions in the resulting glaze as a function of firing temperature and time.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1151-2916.2000.tb01664.x
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