Fabrication of FGMs-1. Solid Phase Processes Spark plasma sintering Powder metallurgy 2. Liquid Phase Processes Centrifugal casting Combustion Tape casting Slip casting Gel-casting Electrophoretic deposition Chemical solution deposition (CSD) Laser deposition Directional solidification Sedimentation Electrochemical gradation 3. Gas-Based Methods Chemical vapour deposition/infiltration (CVD/CVI) Thermal spray Surface modification / Surface coating methods 4. Biopolymeric-Based FGS Freeze drying Compression moulding Electrospinning

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