Brune D, Smith D
Acta Odontol Scand. 1982;40(6):389-96. doi: 10.3109/00016358209025112.
Microstructure characterization of silicate and glass ionomer cements has been carried out using, SEM, EDAX and ion microprobe techniques. The distribution of aluminum, calcium, fluorine, phosphorus or silicon was measured in the set cement surfaces. Cracks in the cement specimens produced by mechanical breaking, in contraction during setting, or as a result of SEM preparation were observed to occur mainly in the matrix and in the interface between matrix and particle. Powders of silicate and glass ionomer cements were separated into various fractions using sieves or cyclone separation technique. Compressive strength measurements of specimens made of powders with various size distributions have been assessed. The fractionation did not reveal any strong effect on the compressive strength properties either for the silicate or the glass ionomer cement.
已使用扫描电子显微镜（SEM）、能量色散X射线分析（EDAX）和离子微探针技术对硅酸盐水泥和玻璃离子水门汀进行了微观结构表征。在凝固后的水泥表面测量了铝、钙、氟、磷或硅的分布。观察到水泥试样中由机械破碎、凝固收缩或扫描电子显微镜制备导致的裂纹主要出现在基体以及基体与颗粒之间的界面处。使用筛网或旋风分离技术将硅酸盐水泥和玻璃离子水门汀的粉末分离成不同的级分。对由具有不同粒度分布的粉末制成的试样进行了抗压强度测量。分级对硅酸盐水泥或玻璃离子水门汀的抗压强度性能均未显示出任何显著影响。
