Volume 12, Issue 3 (September 2015)                   IJMSE 2015, 12(3): 75-82 | Back to browse issues page

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Khoshomid Aghdam E, Naghizadeh R, Rezaie H R. SYNTHESIS OF MgAl2O4-Ti(C,N) NANOCOMPOSITE BY ALUMINOTHERMIC REDUCTION. IJMSE 2015; 12 (3) :75-82
URL: http://ijmse.iust.ac.ir/article-1-832-en.html
SYNTHESIS OF MgAl2O4-Ti(C,N) NANOCOMPOSITE BY ALUMINOTHERMIC REDUCTION
E. Khoshomid Aghdam , R. Naghizadeh , H. R. Rezaie
Abstract:   (28368 Views)
MgAl2O4/Ti(C,N) composites were synthesized through aluminothermic reaction between Al,TiO 2,MgO powders and phenolic resin in coke bed condition. Effect of addition of carbon black and sugar into the mixture at different temperatures were investigated. The phases and microstructures of samples were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). MgAl 2O4 /Ti(C,N) composites without additive were obtained after heat treatment at 1600˚C. With addition of carbon black TiC, TiN and Ti(C,N) were appeared after firing at 1400˚C and formation of spinel/Ti(C,N) composites were completed at 1600˚C. In sample containing sugar, MgAl2O4 -Ti(C,N) composite were completely synthesized at 1400˚C. In this sample crystallite size of Ti(C,N) were 32 nm and carbon content of titanium carbonitride (Ti(C,N)) reached to 0.442 value.
Keywords: MgAl2O4-Ti(C, N) composite, Aluminothermic reaction, Coke bed, TiC, TiN, Spinel
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Type of Study: Research Paper | Subject: forming and mechanical properties
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