- Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
- Vol: 15 Issue: 1
- Mekanik aktive edilmiş kromitin grafitle karbotermal redüksiyon kinetiği
Mekanik aktive edilmiş kromitin grafitle karbotermal redüksiyon kinetiği
Authors : Kenan Yıldız
Pages : 17-22
Doi:10.16984/saufbed.49546
View : 18 | Download : 7
Publication Date : 2011-06-01
Article Type : Other
Abstract :The carbothermal reduction kinetics of mechanically activated chromite with graphite under an argon atmosphere was investigated at temperatures between 1100 and 1400°C. Zhuravlev-Lesokhin-Tempelman (ZLT) method was used in the reduction kinetics for non-activated chromite and the activation energy was calculated as 401.7 kJ/mol. Solid-state diffusion method was used in the reduction kinetics for 60 min-activated chromite and the activation energy was calculated as 283.3 kJ/mol. This decrease in activation energy was due to structural disordering in chromite structure by mechanical activation.Keywords : kromit, karbotermal redüksiyon, kinetik, mekanik aktivasyon