Iranian Journal of Materials Science and Engineering

en LOW TEMPERATURE MOLTEN SALT SYNTHESIS OF NANO CRYSTALLINE MgAl2O4 POWDER Research Paper Research Paper Abstract: composition of MgO and nano boehmite. The reactant and potassium chloride, as the reaction media, were fired at800-1000 °C at different dwell times (0.5-5 h) in the ambient atmosphere. After washing and filtration, the spinel nanopowder was characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) techniques. It was demonstrated that the formation temperature decreased to 850 particles revealed an average size of 30 nm with a narrow size distribution. The mechanism of MgAlwas found to be a template type where the morphology and size of product were similar to those of alumina formedfrom boehmite decomposition. Prolonging the reaction time from 0.5 to 3 h, the reaction was further completed andcrystallinity was improved. However, the increase of temperature was more effective in this regard.MgAl2O4 (MA) nano powder was synthesized via molten salt technique, by heating stochiometric°C. The nano spinel2O4 formation Keywords: spinel nano powder; molten salt method; boehmite 23 28 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-3-151&slc_lang=en&sid=1 Y. Safaei-Naeini 180031947532846001193 180031947532846001193 No 1 School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran. F. Golestani-Fard * golestanifard@iust.ac.ir 180031947532846001194 180031947532846001194 Yes Center of Excellence for Advanced Materials and Processing (CEAMP), Iran University of Science and F. Khorasanizadeh 180031947532846001195 180031947532846001195 No M. Aminzare 180031947532846001196 180031947532846001196 No 1 School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran. S. Zhang 180031947532846001197 180031947532846001197 No 3 Department of Materials Engineering, University of Sheffield, Sheffield S1 3JD, UK.