X射线物相定量分析中消除择优取向的新方法——无压制样法

X射线物相定量分析,是解决混合物中每种矿物的含量问题,它主要解决化学方法不能解决的一些问题。例如,对于高铝矿物中的红柱石、蓝晶石和矽线石,化学分析是靠Al_2O_3的含量,据据上述矿物的分子式来换算成这些矿物的含量。由于这些矿物均与长

Quantitative Analysis of tho X-ray Remove Method of Preferred Orientation

in the phase quantitative analysis by use fo the x-ray diffraction, the contents of minerals are determined by th.e intensity of diffraction. But many factors have influence over the intensity. The prefrred orientation described in this paper is an important influential factor. The difficulty for phase quantitative analysis of talc qy use of the x-ray diffraction method is the preferred orientation. Because talc occurs in foliated, scaly, or fibrous aggregates. When the samples prepared by usual method, it shows random orientations. The intensites are various. Therefore the phase qu- antitative analysis can not be done. In this paper the "nonpressure method of prepared the samples" is described. It eliminated the preferred orientations completely. Then the satisfactory results are obtained. This method is not only suitable for talc, but is also applicable for all other scaly, slaty, or fibrous mi- nerals of sheet silicates.