[Study on the crystal heat treatment schedule of Plat-II castable ceramic].
OBJECTIVE
To establish the crystal heating schedule of Plat-II castable ceramic materials.


METHODS
This study first identified the thermal limits of Plat-II castable ceramic crystallization basing on DTA exotherm analysis, then the crystal density of various heating schedule was observed by scanning electron microscope.


RESULTS
The efficient crystal heating schedule of Plat-II castable ceramic was established: The temperature was increased from the room temperature to 620 degrees C with the speed of 10 degrees C/min, kept 20 min, then was increased continually to 670 degrees C with the speed of 5 degrees C/min, and kept 30 min.


CONCLUSIONS
The establishment of the crystal heat treatment schedule of Plat-II castable ceramic will become the basis for the further study.
Huang
W
W
College of Stomatology, West China University of Medical Sciences.
Zhao
Y
Y
D003460:Crystallization; D003735:Dental Casting Technique; D003776:Dental Porcelain / Q000737:chemistry*; D006358:Hot Temperature; D013696:Temperature; D013816:Thermodynamics
D003776:Dental Porcelain