Abstract:In this study, Ti3SiC2/Al2O3 composites were prepared via in-situ hot pressing sintering at 1550 °C. Al used as a sintering aid reduced the production of TiC impurity phase and stabilized the crystal lattice of Ti3SiC2 to inhibit its decomposiition at high temperature. This is because Al replaced some of the Si atoms to form Ti3(Si1 − xAlx)C2, which showed a crystal structure similar to that of Ti3SiC2. The addition of Al is a prerequisite for the formation of high density Ti3SiC2/Al2O3 composites at high temp… Show more
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