Evaluation of the degree of crystallization in glass-ceramics by dielectric constant measurements

摘要

A theoretical procedure was developed with the aim of obtaining a rapid and accu accurate rate estimation of the degree of crystallization in glasses obtained from fly ash by measuring the dielectric constants constants. Compositions were prepared by melting the mixture of fly ashes, nucleators, fusing agents and clearing agents at 1500 ℃. Dielectric constant stant measurements were carried out by means of universal bridge. The results were compared with the d esults degree of gree crystallization as evaluated by the method of density and showed a good agreement.