作者: C. Morin , S. Le Gallet , M. Ariane , F. Bernard
DOI: 10.1016/J.CERAMINT.2015.10.092
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摘要: Abstract A way to produce Functionally Graded Materials (FGM) is by means of Spark Plasma Sintering (SPS) and specifically designated tools. These new tools permit a current density modulation therefore temperature variation along the z-axis. The key feature relies on varying die section. FEM modelling has given suitable range dimensions between top bottom obtain gradient (around 300 °C) out roughly 15 mm height. Experiments conducted in different configurations (with or without samples) measurement associated thermal led improvements mould (in particular introduction counter-piston). By use this specific mould, an alumina showcasing microstructure was sintered: from dense face exhibiting 1.3 µm grains porous one composed 200 nm grains.