Porous Metal Sheets of NiTi made by Wet Powder Spraying

Abstract

As a promising method to produce thin porous NiTi sheets, Wet Powder Spraying (WPS) is applied for NiTi powders. Layers with a thickness of 150 lm are obtained from pre-alloyed NiTi powders with a particle size of < 12 lm. Optimized process control for spraying and sintering was used. Microstructure and phase formation is characterized. The sheets with a porosity of 15 % show a high pseudoelastic flexibility at room temperature.

BaCe0.85Y0.15O2.925 dense layer by wet powder spraying as electrolyte for SOFC/SOEC applications

“…Wet powder spraying (WPS) is a relatively cost-effective process, originally used for preparing porous ceramic layers [13][14][15]. The method is suitable for different types of surfaces (planar, curve, corrugated) and is appropriate also for producing dense layers [16], by means of adapting some process parameters (distance between the nozzle and the substrate, spray velocity/pressure, angle of the spray cone and viscosity of the suspension itself).…”