A new technology of microcrystallizing leucite to reinforce dental glass ceramics

Zhang Biao; Peng Bin; Duan Xing-long; Qian Fa-tang; Wu Bo-lin

doi:10.1007/BF02838376

Journal of Wuhan University of Technology Materials Science Edition ›› 2004, Vol. 19 ›› Issue (1) : 94 -95. DOI: 10.1007/BF02838376

Article

A new technology of microcrystallizing leucite to reinforce dental glass ceramics

Author information +

History +

PDF

Abstract

The key technology and the main mechanism of microcrystallizing leucite to reinforce dental glass ceramics were investigated. The feedstock powders were selected, mixed according to the ratios of the theoretical composition of leucite, ball—milled, melted at 1600°C and then cooled to room temperature quickly. The cooled clinkers were ball—milled again to 4 μm. After cold—isostatic pressure molded and air sintered at 1500°C for 1 h, the dental glass ceramics were fabricated. They have following characteristics: excellent mechanical properties (mean compressive strength is 206. 6 MPa), low sintering temperature and good reoccurrence to keep steady quality.

Keywords

Leucite / Microcrystallization / Dental glass ceramics

Cite this article

Download citation ▾

Zhang Biao, Peng Bin, Duan Xing-long, Qian Fa-tang, Wu Bo-lin. A new technology of microcrystallizing leucite to reinforce dental glass ceramics. Journal of Wuhan University of Technology Materials Science Edition, 2004, 19(1): 94-95 DOI:10.1007/BF02838376

登录浏览全文

4963

注册一个新账户忘记密码

References

Publishing order | Descend order by publishing year | Descend order by cited within

[1]	Zhang Biao. The Effect of Leucite on Dental Glass Ceramics. Beijing Journal of Stomatology, 1999, 7: 44-47.

[2]	Mackert J R, Evans A L. Multiple Firing Effect on Leucite Content of Dental Porcelains and Correlation with Thermal Expansion. Journal of Dental Research, 1992, 71: 238-238.

[3]	Mackert J R. Isothermal Anneal Effect on Leucite Content on Dental Porcelain. Journal of Dental Research, 1994, 73: 369-369.

[4]	Rosenblum M A. Kinetics and Morphology of Leucite Crystallization on Dental Procelain Composition. Journal of Dental Research, 1991, 70: 456-456.

[5]	Alvarez V, Rosenblum M A. XRD Standard Curves for Leucite in Porcelain: Effect of Glass Matrix. Journal of Dental Research, 1991, 70: 483-483.

[6]	E M Levin, C R Robbins and H F McMurdie. Phase Diagrams for Ceramics.The American Ceramic Society, 1969: 117–265

[7]	Mackert J R, Butts M B, Morena R, Fairhurst C W. Phase Changes in a Dental Porcelain Frit. Journal of Dental Research, 1984, 63: 102-102.

[8]	Mackert J R, Butts M B, Fairhurst C W. The Effect of the Low-High Leucite Transformation on Dental Porcelain Expansion. Journal of Dental Research, 1985, 64: 246-246.

[9]	McMilan P W.Glass Ceramics. London Academic Press, 1979: 4–18

[10]	Kern M, Thompson V P. Sandblasting and Silica Coasting of a Glass-Infiltrated Alumina Ceramic: Volume Loss, Morphology and Changes in the Surface Composition. Journal Prosthetic Dentistry, 1994, 71(5): 453-461.