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如何区分A类和C类夹杂物?

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检测非金属夹杂物的时候,如何区分A类和C类的夹杂物呢?
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其实在明暗场光学上很难区分AC类,主要从经验结合能谱等分析成份,A类一般细尖,C类边界更为圆润,从分布上看C类有时成簇分布,当然球状不变形硅酸盐夹杂特征就比较明显了,有时还带锥孔。
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A 类 (硫 化物类):具有高的延展性,有较宽范围形态比(长度/宽度)的单个灰色夹杂物,一般端部呈圆角;C类(硅酸盐类):具有高的延展性,有较宽范围形态比(一般)3)的单个呈黑色或深灰色夹杂
物 ,一般端部呈锐角;
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A类硫化物夹杂 一般均匀棒状!
C类硅酸盐夹杂 一般串点型!
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