Yazarlar |
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 |