Sarkar N K, Chiche G, Pinault A
Louisiana State University, School of Dentistry, New Orleans 70119.
Quintessence Int. 1991 Feb;22(2):113-8.
In this study, the microstructural nature of the Renaissance crown system has been characterized in an effort to understand its reported properties and performance. Intergranular cavitation was characteristic of the foil surface. The brazed area joining various pleats was porous and exhibited an equiaxial grain structure. Particles of the interfacial alloy sintered with each other and bonded to the foil. Flow of porcelain into intergranular grooves of the foil and within the porous interfacial alloy network was observed. Tags that formed as a result contributed to the micromechanical retention of porcelain on the foil. No evidence of foil-porcelain chemical bonding was found, nor was there any indication of substantial interlayer diffusion.
在本研究中，对文艺复兴时期牙冠系统的微观结构特征进行了表征，以便了解其已报道的性能。箔片表面的特征是沿晶空化。连接各个褶皱的钎焊区域是多孔的，并呈现等轴晶粒结构。界面合金的颗粒相互烧结并与箔片结合。观察到瓷流入箔片的晶间凹槽以及多孔界面合金网络内部。由此形成的标签有助于瓷在箔片上的微机械固位。未发现箔片与瓷之间存在化学键合的证据，也没有明显的层间扩散迹象。
