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一前言自七十年代发展参比强度方法以来,X射线定量相分析引起人们广泛的兴趣,并获得了进一步的发展。这种方法比较简便省时,只要将被测物质和标准物质按一定重量比混合均匀制样,测量它们的最强衍射线的强度比,通过简单的运算就能求得欲知的物相含量。如果它们的最强衍射线因与其它衍射线重迭而无法使用,则可采用次强线或其它衍射线,经过换算也能进行物相的定量分析。二标样的条件不是所有的物质都可作为X射线的标样,只有那些具有适当数量的衍射线,有高的衍射强度和良好的强度重复性,结晶好,高的结晶纯度,化学性能稳
I. INTRODUCTION Since the development of reference intensity methods in the seventies, quantitative analysis of x-ray has drawn great interest and gained further development. This method is relatively simple and time-saving, as long as the test substance and the reference material according to a certain weight ratio of mixed sample preparation, measurement of their intensity ratio of the strongest diffraction line, can be obtained by a simple calculation of the known phase content . If their strongest diffraction line can not be used due to overlapping with other diffraction lines, then minor or other diffraction lines can be used, and the quantitative analysis of the phases can also be performed after conversion. The conditions of the second standard Not all substances can be used as a standard X-ray, only those with the appropriate number of diffraction lines, high diffraction intensity and good intensity repeatability, good crystallization, high purity of the crystal, chemical stability