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工业硅是在工业电炉内由石英和不同的炭质还原剂生产的．含有高达１％金属杂质。这些金属杂质就是聚集在晶粒边界的硅的化合物，在凝固期间在工业硅中形成的沉淀物。用具有波长色散的Ｘ射线分析扫描电子显微镜，我们鉴定了多达十种二元、三元、四元甚至多元化合物。用这种方法研究了富硅区金属间化合物的物理和化学性质。它们是Ｓｉ２Ｃａ、Ｓｉ２Ａｌ２Ｃａ、Ｓｉ８Ａｌ６Ｆｅ４Ｃａ、Ｓｉ２ＦｅＴｉ，Ｓｉ７Ａｌ８Ｆｅ５、Ｓｉ２Ａｌ３Ｆｅ和Ｓｉ２Ｆｅ（Ａｌ）。根据含有杂质的比例，我们确定了工业硅中每种化合物在给定的冷却条件下存在的区域，计算了平衡相图，以了解固化机理。一些实验表明，计算值和实验值吻合良好。为了确定硅的一个较好的生产方法，我们探讨了金属间化合物在氯甲基化反应上的影响。实验数据显示了冷却条件在金属间化合物稳定性方面的响响。例如，硅在９００℃缓冷，按照反应３Ｓｉ２Ａｌ２Ｃａ＋４Ｓｉ２Ｆｅ→４Ｓｉ２Ａｌ６Ｆｅ４Ｃａ＋２Ｓｉ２Ｃａ＋２Ｓｉ则四元金属间化合物Ｓｉ８Ａｌ６Ｆｅ４Ｃａ大量增加，而三元化合物消失。相图和不平衡反应知识加深了对固化机理以及各种组分和冷却条件下硅的行为的了解．硅的结构和控制结构的参数知识使人们了解硅的特点和改变它的?
Industrial silicon is produced in industrial furnaces from quartz and different carbonaceous reducing agents. Contains up to 1% metallic impurities. These metal impurities are compounds of silicon that aggregate at grain boundaries, precipitates that form in industrial silicon during solidification. Using X-ray analytical scanning electron microscopy with wavelength dispersion, we identified up to ten binary, ternary, quaternary or even multiple compounds. In this way, the physical and chemical properties of silicon-rich intermetallics have been studied. They are Si2Ca, Si2Al2Ca, Si8Al6Fe4Ca, Si2FeTi, Si7Al8Fe5, Si2Al3Fe and Si2Fe (Al). Based on the impurity-containing ratio, we determined the area where each compound in industrial silicon was present under the given cooling conditions and calculated the equilibrium phase diagram to understand the cure mechanism. Some experiments show that the calculated value is in good agreement with the experimental data. In order to determine a better method for the production of silicon, we explored the effect of intermetallics on the chloromethylation reaction. Experimental data show the cooling conditions in the intermetallic compound stability of the response. For example, the silicon is slowly cooled at 900 ° C, and the quaternary intermetallic compound Si8Al6Fe4Ca increases greatly according to the reaction of 3Si2Al2Ca + 4Si2Fe → 4Si2Al6Fe4Ca + 2Si2Ca + 2Si, while the ternary compound disappears. Knowledge of phase diagrams and imbalance reactions deepens understanding of the curing mechanism and the behavior of silicon under various components and cooling conditions. Knowledge of the structure and control structure of silicon make people understand the characteristics of silicon and change it?