Preparation of Steel Pipe Lined Fe-Al Intermetallic-TiB2- Al2O3 Composite by Centrifugal-SHS Process

Steel pipe lined Fe-Al intermetallic-TiB2-Al2O3 composite were prepared by centrifugal-self-propagating high temperature synthesis (centrifugal-SHS) process from FeTiO3, B2O3, Fe2O3 and Al as the raw materials. The standard Gibbs energy minimization method was used to calculate the equilibrium compositions of the reacting species. The effect of molar ratio of precursors and rotating speed on result product were investigated. It was shown that the composites layer had less porosity as higher rotating speed was applied. The phase composite and morphology were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) couple with Energy dispersive Xray (EDX), respectively.