| Yazarlar |
Hamıd Reza Rezaie
|
|
R. Naghizadeh
|
Dr. Öğr. Üyesi Farzin ARİANPOUR
Kastamonu Üniversitesi, Türkiye |
|
R. Ghasemzadeh
|
|
S. Eslami
|
| Özet |
| In this research barium hexa aluminate fibrous refractory products were produced by a chemical processing route. Boehmite was used as aluminum precursor while barium nitrate was used as barium precursor and the final solution had made according to stoichiometric Ba0.6Al203 composition. It was found that two different gels could be obtained during this route. Mainly the secondary gel was trapped into the initial gel structure. Finally gels were heated at various temperatures (1350, 1650 °C) to following the formation of the barium hexa aluminate in fibrous structure due to sintering. Then the crystallization of transitional phases such as 3BaO1Al 2O3 and BaO1Al2O3 to Ba0.6Al2O3 were followed at different sintering temperatures by X-ray diffractometry (XRD) and Fourier transform infrared (FTIR) spectroscopy. Also scanning electron microscopy (SEM) was used to study the microstructural changes and micrographies. The produced gels were characterized by thermo gravimetrical and differential thermal analysis (TG/DTA). The results showed that Ba0.6Al2O3 was the major phase at higher temperatures and fibrous structure appeared in final samples. Sol-gel process,. Scanning electron microscopy,. X-ray diffraction,. Aluminum oxide,. Barium hexa aluminate. |
| Anahtar Kelimeler |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | JOURNAL OF CERAMIC PROCESSING RESEARCH |
| Dergi ISSN | 1229-9162 |
| Dergi Tarandığı Indeksler | SCI |
| Dergi Grubu | Q4 |
| Makale Dili | İngilizce |
| Basım Tarihi | 01-2009 |
| Cilt No | 10 |
| Sayı | 2 |
| Sayfalar | 148 / 151 |
