The effects of sinter temperature on the crystalline phase and microstructural evolution of lithium disilicate glass-ceramic / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6): 322-326, 2017.
Artigo
em Chinês
| WPRIM
| ID: wpr-610107
ABSTRACT
Objective:
To investigate the influence of sinter temperature alteration on the crystalline phase and microstructure of lithium disilicate glass-ceramic.Methods:
Samples of lithium disilicate glass-ceramic were heated using the standard two stage heating-schedule at different final temperatures.All samples were observed by X-ray diffractometer (XRD),field emission scanning electron microscope(FESEM) and energy-dispersive X-ray spectroscopy(FE-SEM-EDS) for the evaluation of crystalline phase and microstructural evolution.Results:
Crystalline phase and microstructure of ceramic samples showed significant changes during processing at different temperatures,especially at 800 ℃.Samples sintered at 840 ℃ displayed higher crystallinity(P<0.05) and denser microstructure.Conclusion:
Temperature control is important in ceramic sintering.800 ℃ and 840 ℃ are the critical temperature points in the crystalline phase and microstructural evolution of lithium disilicate glass-ceramic.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Journal of Practical Stomatology
Ano de publicação:
2017
Tipo de documento:
Artigo
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