Fabrication and characterization of pure porous Ti_3SiC_2 with controlled porosity and pore features

摘要

Pure porous Ti_3SiC_2 with controlled porosity and pore features were prepared by using elemental powders with NaCl as pore-forming agent. Influences of NaCl content and particle size on porosity, purity and mechanical properties of the prepared porous Ti_3SiC_2 were studied. Results revealed that Ti_3SiC_2 samples with purity of 97.8% and porosity of 75% can be achieved. The prepared porous Ti_3SiC_2 samples have good pore connectivity, Uniform pore size and pore distribution. The stress-strain curves of the prepared samples showed a typical brittle fracture of ceramic foam.