Ti 2 AlC x ceramic was produced by reactive hot pressing (RHP) of Ti:Al:C powder mixtures with a molar ratio of 2:1:1-.5 at 10-20 MPa, 1200-1300 • C for 60 min. Xray diffraction analysis confirmed the Ti 2 AlC with TiC, Ti 3 Al as minor phases in samples produced at 10-20 MPa, 1200 • C. The samples RHPed at 10 MPa, 1300 • C exhibited ≥95 vol.% Ti 2 AlC with TiC as a minor phase. The density of samples increased from 3.69 to 4.04 g/cm 3 at 10 MPa, 1200 • C, whereas an increase of pressure to 20 MPa resulted from 3.84 to 4.07 g/cm 3 (2:1:1 to 2:1:.5). The samples made at 10 MPa, 1300 • C exhibited a density from 3.95 to 4.07 g/cm 3 . Reaction and densification were studied for 2Ti-Al-.67C composition at 10 MPa, 700-1300 • C for 5 min showed the formation of Ti-Al intermetallic and TiC phases up to 900 • C with Ti, Al, and carbon. The appearance of the Ti 2 AlC phase was ≥1000 • C; further, as the temperature increased, Ti 2 AlC peak intensity was raised, and other phase intensities were reduced. The sample made at 700 • C showed a density of 2.87 g/cm 3 , whereas at 1300 • C it exhibited 3.98 g/cm 3 ; further, soaking for 60 min resulted in a density of 4.07 g/cm 3 . Microhardness and flexural strength of Ti 2 AlC 0.8 sample were 5.81 ± .21 GPa and 445 ± 35 MPa.
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