【摘要】 将银溶胶用适当的保护剂保护后 ,置于一定波长的可见光下进行辐照可以得到纳米级片状银粉。可见光的辐照时间以及波长和强度等对所得片状银粉的几何特征影响较大。整个光诱导过程可以分为诱导、生长和成熟 3个时间段。光诱导法是替代现行球磨法制备片状银粉的可选方法之一 ,具有较大的发展前景更多还原

【Abstract】 Large quantities of spheric silver colloidal particles,which were protected by poly vinyl pyrrolidone(PVP),can be converted into flake silver powders using photoinduced method.The irradiation time,the wavelength and intensity of visible irradiation light and many other factors have a great influence on the geometrical characteristics of flake silver powders.The whole photoinduced process can be divided into three stages of induction,growth and ripeness,according to the extinction characteristics of ultrafine flake silver powders.The photoinduced method is one of the candidated of substitute for the traditional ball milling method,which has an application prospect.更多还原