共沉淀过程酸碱性条件对BaTiO_3超细粉料性能的影响

Effects of the Acid-Based Conditional in the Process of Homogeneous Precipitation on Properties of BaTiO 3 Ultrafine Powder

设计并比较了在酸碱性不同的两种共沉淀工艺条件下制备超细ＢａＴｉＯ３粉料其性能的差异，借助化学分析，ＸＲＤ分析，ＳＥＭ分析，ＴＧ－ＤＴＡ分析以及原子发射光谱分析等测试手段，分别从粉料组成、纯度、细度、分散状况等方面进行比较。

In this paper, two different homogeneous precipitation processes under acidity and basicity conditions are designed and compared. With the aid of various means of analysis , including chemical analysis of XRD, SEM, TG-DTA and atom emission spectrum etc, comparisions in the following aspects have been done, such as the composition, purity, degree of fineness and state of dispersion for BaTiO 3 power. It is shown that properties of BaTiO 3 ultrafine powder by acidity technology are superior to those by basicity technology.