摘要
目的 :研究金沉积烤瓷冠金瓷界面元素的扩散情况和分布特征 ,探讨沉积纯金表面烤瓷的金瓷结合机制。方法 :对金沉积烤瓷试样用电子探针对金瓷结合界面进行各元素线扫描、面分析 ,并观察金瓷界面形貌。结果 :从金侧向瓷侧 ,几种典型分布特征的元素 :Au从峰值下降到零 ,扩散带宽 3～ 4μm ;Al从瓷侧向金属侧扩散 ,至界面时含量急剧下降的趋势显著 ,而Ba在界面两侧含量基本稳定 ;形貌方面金瓷界面间有明显的机械式嵌合突起。结论 :金沉积烤瓷界面间存在微量金属元素的扩散 ;金沉积烤瓷冠金瓷界面金与瓷紧密嵌合。
Objective: To study the ionic diffusion and the distri bu tion character in the interfacial area of aurogalvano form ceramic crown, and t o discuss the bond mechanism of porcelain fused to 99.9% gold. Method s: The ionic diffusion and the distribution character in the interfac ial area of aurogalvano form ceramic crown were observed by electron probe and scanning electron microscope. Results: The examination wit h electron microprobe showed that from gold to porcelain aluminum ascended from zero to peak value, aurum dropped from the peak value to zero, and the bandwidt h was about 3～4 μm.There were obvious mechanical table and tuber. C onclusion: There is ionic diffusion and no crack in the interfacial a rea;there are physical and chemical combinations between porcelain and 99.9% gol d.
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
2004年第1期76-79,共4页
Journal of Practical Stomatology
关键词
金沉积
烤瓷冠
金瓷界面
金瓷修复体
电子探针
热膨胀系数
Metal ceramic restoration
Auro galvano form
Inte rface
Electron probe
Coefficient of thermal expansion
