The characteristics of the powders were investigated by differential scanning calarmeutry and thermogravimetric analysis(DSC TG),X ray diffraction(XRD)and transmission electron microscopy(TEM).

• 运用差示扫描量热法 -失重分析 (DSC TG)、X 射线衍射 (XRD)、透射电镜 (TEM)等观测手段对微粉末进行了表征 ;