マグネシア・クリンカーに及ぼすMgO・Fe2O3, CaO・Fe2O3の鑛化作用について

概要

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The pbysical properties and microstructure of the magnesia clinker, which was obtained from the light burned magnesia or chemical pure magnesia mixed with 1-10% synthetic MgO⋅Fe2O3 or CaO⋅Fe2O3, and fired 1300-1600°C for 3 hours, was studied and then we has compared the case of synthetic MgO⋅Fe2O3 with the case of Fe2O3 mixed in magnesia.Still more, we has confirmed of the compounds and forms of Fe2O3 in magnesia clinker by chemical analysis, magnetic properties and x-Ray analysis.We found that, there is no great difference between the case of synthetic MgO⋅Fe2O3 and the case of Fe2O3 in the point of the microstructure, but the synthetic MgO⋅Fe2O3 have rather weak mineralizing action than Fe2O3 at high temperature. The case of synthetic CaO⋅Fe2O3 shows complicated mineralizing action and generally worse developement of periclase crystal than the cage of Fe2O3, and then produced periclase grain shows a characteristic structure like a hive as well as the case of CaO was mixed in magnesia.
社団法人日本セラミックス協会の論文