Preparation of Ti₂SnC by solid—liquid reaction synthesis and simultaneous densification method

Fabrication, mechanical properties, and tribological behaviors of Ti2AlC and Ti2AlSn0.2C solid solutions

“…These two phases can be generated from the following reactions: Ti + Al + TiC → Ti 2 AlC, Ti + Al + 2TiC → Ti 3 AlC 2 . The sintering process of Ti 3 AlC 2 is similar to that of Ti 2 AlC; consequently it is difficult to suppress the generation of 27.93 at% C, in good agreement with that identified with the XRD patterns (shown in Fig. 2).…”

“…[26]. After incorporation of 0.2Sn, the hardness of Ti 2 AlSn 0.2 C (~3.92 GPa) solid solution has decreased by 30% compared with Ti 2 AlC (~5.55 GPa), but this value is slightly higher than that of the single phase of Ti 2 SnC [27]. The Vickers hardnesses of Ti 2 AlC and Ti 2 AlSn 0.2 C show a similar trend in the load range of 4.9-98 N (see Fig.…”

“…3(d) 3 , which is almost close to 4.06 g/cm 3 in Ref. [26]; the volume density of Ti 2 AlSn 0.2 C is measured to be 4.6 g/cm 3 , between the density values of Ti 2 AlC and Ti 2 SnC [27]. Under the load of 9.8 N, the Vickers hardness of Ti 2 AlC is measured to be ~5.55 GPa, much higher than that of Ti 2 AlC in Ref.…”

“…And the flexural strength of Ti 2 AlSn 0.2 C is measured to be 410 MPa, a little lower than that of Ti 2 AlC bulk, but much higher than that of single-phase Ti 2 SnC bulk in Ref. [27]. Both the hardness and flexural strength of the Ti 2 AlC bulk are much higher than that in Ref.…”

Strengthening and tribological surface self-adaptability of Ti3AlC2 by incorporation of Sn to form Ti3Al(Sn)C2 solid solutions

“…3 shows the microstructures of Ti 3 AlC 2 , Ti 3 AlSn 0.2 C 2 and Ti 3 Al 0.8 Sn 0.4 C 2 . The microstructures of the Ti 3 Al(Sn)C 2 solid solutions clearly show a characteristic feature of Ti 3 AlC 2 and Ti 2 SnC [35]. Comparing the microstructures of Ti 3 AlC 2 shown in Fig.…”