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Rietveld Quantitative Analysis of Amorphous Phase in Slag by Internal Standard Method

机译：内标法对渣中非晶相进行Rietveld定量分析

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Rietvled quantitative analysis of amorphous phase in slag by adding α-Al2O3 as the standard was investigated by internal standard method with Topas software. The results show that the content of amorphous phase in slag can be quantified by Rietveld method. However it is necessary to increase the signal-noise ratio and resolution of the XRD pattern to obtain more accurate quantitative results if the slag contains less crystal phase. The qualitative analysis of XRD pattern with step-scanning type and smaller slit settings showed the crystalline phase of merwinite, gehlenite and periclase existed in the slag sample. The above step-scanning XRD pattern was refined by Rietveld method showing the quantitative results of amorphous phase in slag was 97.94% of weight fraction. And the weight fractions of merwinite, gehlenite and periclase were 1.10%, 0.33% and 0.63% respectively.
机译：采用Topas软件，采用内标法研究了以α-Al2O3为标准物对渣中非晶相的流变定量分析。结果表明，采用Rietveld方法可以定量测定炉渣中非晶相的含量。但是，如果炉渣中含有较少的结晶相，则有必要提高XRD图的信噪比和分辨率，以获得更准确的定量结果。定性分析了阶梯扫描型和较小狭缝设置的XRD图谱，表明渣样品中存在闪锌矿，方铅矿和钙镁石的结晶相。通过Rietveld方法对上述逐步扫描XRD图案进行了精炼，结果表明炉渣中无定形相的定量结果为重量分数的97.94％。硫汞矿，钠钙石和钙镁石的重量分数分别为1.10％，0.33％和0.63％。

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