Effect of Fe on the phases and microstructure of TiC–Fe cermets by combustion synthesis/quasi-isostatic pressing

Differential thermal analysis (DTA) on the reaction mechanism in Fe–Ti–B4C system

“…However, the melting temperature of the reactants is high and the activation energy of the reactions is large so that the ignition temperature is approximately close to the Ti melting temperature [4]. In this case, some low melting-point metals (such as Al [4][5][6], Cu [7,8], Ni [9,10] and Fe [11][12][13][14][15][16][17]) were added to the Ti-C, Ti-B, and Ti-B 4 C reactants, and the reactions were then found to initiate at much lower temperatures, indicating that the incorporation of such low melting-point metals can effectively decrease the reaction activation energy.…”

“…SHS reactions in both the Fe-Ti-C and Fe-Ti-B systems have been studied by many researchers [1,[11][12][13][14][15][16][17], focusing on the reaction behaviors, such as combustion temperature, wave velocity, activation energy of the reaction, and the microstructure of the synthesized composites. Only a few researchers have * Corresponding author.…”

Effect of Cr content on the SHS reaction of Cr–Ti–C system

“…Therefore, a metal phase is considered to be added in Ti-C system that the metal can serve as a bonding agent to improve the properties of TiC ceramic. Generally, such composites can be fabricated by hot isostatic pressing (HIP) [4], spark plasma sintering (SPS) [5,6], reactive melt infiltration (RMI) [7][8][9] and self-propagating high temperature synthesis (SHS) [1][2][3][10][11][12][13][14][15]. Among these methods, SHS has attracted a great attention because of its unique * Corresponding author.…”

“…Recently, most work on the SHS reaction of Ti-C system with the addition of different metals has been focused on Fe-Ti-C [11], Ni-Ti-C [12], Cu-Ti-C [1] and Al-Ti-C [2,10]. It is found that the additional metal has a certain effect towards the SHS reaction such as the combustion behavior, the phase composition and the product microstructure.…”

“…Zhang et al [11] have produced full density TiC with Fe content of 10-40 wt.% by SHS reaction combined with quasi-isostatic pressing (QIP) technique. They found that the combustion temperature, wave velocity and TiC particle size decreased while the product density increased with the increase of Fe content.…”