Interfacial interactions between liquid new biocompatible model glasses and solid metallic and ceramic substrates used in biomedicine

被引:5
作者
Key, IA [1 ]
Pina, S [1 ]
Agathopoulos, S [1 ]
Tulyaganov, DU [1 ]
Ferreira, JMF [1 ]
机构
[1] Univ Aveiro, CICECO, Dept Ceram & Glass Engn, P-3810193 Aveiro, Portugal
来源
BIOCERAMICS 17 | 2005年 / 284-286卷
关键词
ceramics; glasses; high temperature; interfacial interaction; Ti; wettability; WETTABILITY;
D O I
10.4028/www.scientific.net/KEM.284-286.835
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In the framework of producing new composite biomaterials, this study investigated the interfacial interactions between molten brand new biocompatible glasses with model formulations and Ti, hydroxyapatite, zirconia and a CrNi-steel. Analysis, by grouping the results of each particular substrate, indicates that Ti reduces the molten glass-oxides, HA tends to diffuse with them, zirconia grain-boundaries are vulnerable towards them, and Cr-Ni-steel very poorly adhere to them. Analysis, by grouping the results of each particular glass, indicates that the matching of their expansion coefficient with that of substrate and crystallization affect the formation of continuous or cracked interface. Viscosity and surface tension of glasses determine wettability. Wettability is not however determinative index of evaluating the quality and the strength of the resulting interfaces.
引用
收藏
页码:835 / 838
页数:4
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