Plat-Ⅱ型铸造玻璃陶瓷晶化热处理程序的研究  

Study on the Crystal Heat Treatment Schedule of Plat II Castable Ceramic

作　　者：黄挽力[1,2] 赵云凤[1,2] 

机构地区：[1]华西医科大学口腔医学院 [2]中山医科大学工作

出　　处：《华西口腔医学杂志》1999年第1期26-28,I001,共4页West China Journal of Stomatology

摘　　要：目的：探讨Ｐｌａｔ－Ⅱ型铸造玻璃陶瓷晶化热处理程序。方法：本实验以Ｐｌａｔ－Ⅱ型铸造玻璃陶瓷材料（ＰＣＣ－Ⅱ型）的差热分析为基础，首先确定该材料的晶化温度范围，再用扫描电镜观察各种受控温度处理下试件晶化的情况，以确定Ｐｌａｔ－Ⅱ型铸造玻璃陶瓷的晶化热处理程序。结果：Ｐｌａｔ－Ⅱ型铸造玻璃陶瓷晶化热处理程序为：室温下以１０℃／ｍｉｎ速度升温至６２０℃，保温２０分钟，再以５℃／ｍｉｎ速度升温至６７０℃，保温３０分钟。结论：铸造玻璃陶瓷晶化热处理程序的确定成为其进一步研制的基础。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 exothern analysis, then the crystal density of various heating schedule was observed by scanning electron microscope. Results: The efficient crystal heating schedule of Plat II castbale ceramic was established: The temperature was increased from the room temperature to 620℃ with the speed of 10℃/min, kept 20min, then was increased continually to 670℃ with the speed of 5℃/min, and kept 30min.Conclusion: The establishment of the crystal heat treatment schedule of Plat II castable ceramic will become the basis for the further study.

关 键 词：铸造玻璃陶瓷 晶化 牙科材料 热处理 

分 类 号：R783.1[医药卫生—口腔医学]