Atmospheric plasma spraying 1 Atmospheric plasma-spraying 1 Beams and girders 1 Building materials 1 First wall 1 Functionally graded material 1 Functionally graded materials 1 Fusion reactors 1 Graded interlayer 1 Heat flux 1 High heat flux 1 Joining 1 Plasma spraying 1 Spark plasma sintering 1 Spark-plasma-sintering 1 Thermal expansion 1 W-steel atmospheric plasma spraying (APS) 1 functionally graded material (FGM) 1 high heat flux (HHF) 1 spark plasma sintering (SPS) 1