The main requirements for SOFC support are high mechanical strength, high porosity, heat-resistance, the agreement of coefficient of thermal expansion (CTE) with other components of fuel cell.

    Recently, the great interest focuses on the study of Fe-Cr support for SOFC, due to meeting with almost necessary requirements. But there are some obstacles to use it in practice because of Cr diffusion in other SOFC components. Reduction of the SOFC operating temperatures till 650-700 ^oC allows substituting Fe-Cr alloys for Ti-Si.

     This work is devoted to development of manufacture method of Ti-5.4Si supporter and studying of its properties. The powder was obtained with the rotated electrode sputtering method. This method allows making powder with spherical particles, what simplify to get uniform distribution of Si and high porosity in the samples. The butt-end electrode was melted by plasma. The crystallization of spherical powder occurred during flying of the melted drops in gas-cooling (Ar-He, 1:10) chamber. The average particle size was from 315 to 500 μm. The Ti-5.4Si powder was uniaxialy pressed with compaction pressures 624 and 780 MPa. The samples were sintered in vacuum (2×10^-3 Pa) at different temperatures 1250, 1270, 1300 and 1400 ^оС.  It was shown that highest porosity 37% was reached in the samples made with compaction pressure 624 MPa and sintering temperature 1300 ^оС. Three-point bend test was used for definition of mechanical properties of the Ti-5.4Si samples. The structure and fracture mechanisms of the samples were studied with SEM.

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