Microstructure Investigation of (Y,Ce)-TZP-Al_2O_3 Composite Materials

The microstructure of selected specimens in the (Y,Ce)-TZP-Al2O3 composite systems was studied. The investigation techniques used in this work included X-ray diffractometry ( XRD ) , Scanning Electroscope ( SEM ) , Transmission Electroscope (TEM), X-ray Energy Dispersion Analysis(EDAX) and High Resolution Electron Microscopy (HREM). Based on the experimental results, the relationship between microstructure and mechanical properties of the specimens was discussed.     

颗粒物质中压力随高度的变化规律

用实验方法研究了圆筒容器中静止沙堆内策略的分布及变化规律。直接测量了颗粒物质的摩擦力，给出摩擦力与颗粒填充密度的关系，摩擦力与颗粒堆积高度的关系，并分析讨论了相关因素。