Comparison of fluor-mica glass-ceramics made by melt-casting and sintering methods / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6): 824-827, 2009.
Artículo
en Chino
| WPRIM
| ID: wpr-405670
ABSTRACT
Objective:
To study the effects of the melt casting and the sintering methods on the machinability and other characteristics of K_2O-MgO-MgF_2-SiO_2 glass-ceramics.Methods:
X-ray diffraction(XRD) and scanning electron microscopy (SEM)were used to examine the main crystal and the microstructure of the glass ceramics of the same composition which were made by melt casting and sintering methods, respectively. The transmissivity, flexural strength and brittleness index were observed respectively.Results:
The glass ceramics made by two different methods have the same crystal, KMg_(2.5)Si_4O_(10)F_2, while the specimen prepared by the sintering method had lower transmissivity,better machinability and mechanical properties due to the higher mica volume percent. Conclusion; For production of fluoro-mica glass ceramics, sintering method has superiority compared to melt-casting method.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
Journal of Practical Stomatology
Año:
2009
Tipo del documento:
Artículo
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