en گروه مکانیکی و شکل دادن Mechanical Performance and Formability of Materials Research Paper Research Paper 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. MgAl2O4-Ti(C,N) composite, Aluminothermic reaction, Coke bed, TiC, TiN, Spinel 75 82 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-127-97&slc_lang=en&sid=1 E. Khoshomid Aghdam 180031947532846003330 180031947532846003330 No Department of material Eng.,Science and Research Branch, Islamic Azad University, Tehran, Iran. R. Naghizadeh rnaghizadeh@iust.ac.ir 180031947532846003331 180031947532846003331 Yes School of Metallurgy&Materials Engineering, Iran University of Science and Technology, Tehran, Iran. H. R. Rezaie 180031947532846003332 180031947532846003332 No School of Metallurgy&Materials Engineering, Iran University of Science and Technology, Tehran, Iran.