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Phase and Microstructural Studies of Two Types Commercial Magnesia and Spinel Refractory Raw Materials with Emphasis on Impurities Characterization    
Yazarlar
Dr. Öğr. Üyesi Aslı ÇAKIR ARIANPOUR Dr. Öğr. Üyesi Aslı ÇAKIR ARIANPOUR
Kastamonu Üniversitesi, Türkiye
Özet
Mineralogical impurities of the used magnesia and spinel raw materials are kinds of most important factors which strongly effect on different properties of magnesia-spinel refractories such as melt/slag resistance, physical and thermo mechanical behavior. In this research, two types of commercially available fused/sintered magnesia and spinel raw materials were investigated in terms of microstructure and phase composition with emphasis on the impurities characterization. The phase analysis was studied via X-ray diffraction and the microstructure was investigated using scanning electron microscopy and electron back scattered diffraction techniques. X-ray patterns showed that the main phase in both spinels is MA spinel and any other impurity phases are not detected. The EBSD results revealed that the major phase of sintered magnesia is periclase and the grain boundaries were characterized as merwinite and monticellite. In contrast, for fused one, it is found that the phase composition of grains and boundaries are very similar and were characterized as periclase, merwenite and dispersed monticellite.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü Ulusal alan endekslerinde (TR Dizin, ULAKBİM) yayımlanan tam makale
Dergi Adı Karaelmas Science and Engineering Journal
Dergi ISSN 2146-4987
Dergi Tarandığı Indeksler TR DİZİN
Makale Dili İngilizce
Basım Tarihi 12-2017
Cilt No 7
Sayı 2
Sayfalar 395 / 401
Doi Numarası 10.7212/zkufbd.v7i2.799