The mineralising effect of CuO on microstructure and phase composition of SO₃-doped clinker was studied by a combination of phase analysis, light and scanning electron microscopy and QXRD. Results show proportionally higher C₄AF content in clinker interstitial matter due to CuO doping. CuO also lowers the SO₃ incorporation in main clinker phases C₃S and C₂S. Observation in back-scattered electrons revealed that Cu crystallises mainly as a Cu-rich phase in the clinker interstitial matter and inclusions in crystals of C₂S with distorted structure. CuO partially inhibits the incorporation of Fe₂O₃ in C₂S.

中文翻译：

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CuO对SO3活化熟料显微组织和相组成的影响

采用物相分析、光学和扫描电子显微镜及QXRD相结合的方法研究了CuO对SO _{3掺杂熟料微观结构和相组成的矿化作用。}结果表明，由于 CuO 掺杂，熟料间隙物质中的C ₄ AF 含量成比例地增加。CuO 还降低了主要熟料相 C ₃ S 和 C ₂ S 中的 SO ₃掺入量。对背散射电子的观察表明，Cu 主要作为熟料间隙物质中的富铜相和 C ₂ S晶体中的夹杂物结晶扭曲的结构。CuO 部分抑制了 Fe ₂ O ₃在 C ₂ S中的结合。