A. Najafi

[ 1 ] - THE EFFECT OF PROCESSING PARAMETERS ON SOL GEL SYNTHESIS OF β-SiC NANO POWDER

Mono dispersed nano SiC particles with spherical morphology were synthesized in this project by hydrolysis and condensation mechanism during sol gel processing. pH, temperature and precursor’s ratio considered as the main parameters which could influence particles size. According to DLS test results, the smallest size of particles in the sol (<5nm) was obtained at pH<4. It can be observed from ...

[ 2 ] - بررسی اثر TiO2 بر خواص جرم های ریختنی آلومینا- اسپینل

The effects of TiO2 addition on properties of alumina spinel refractory castables werer investigated in this research. For this purpose three different composition with 0, 6 and 9 perecent TiO2,  (SP), (SP-6T) and (SP-9T),  were preparedin order to test and measure the properties of the castables. Then the samples were sintered from 1000-1600ºC in an electric furnace. The characterization resul...