Applying a negative bias across the device may cause mechanical failure. The inner surface is the positive electrode that should receive positive bias, and the outer surface should be connected to ground. Align the Individual PZT or BSPT Crystals Along the Same Axis by Poling the ElementsĪ positive bias should be applied across the device.Screen Print the Outer Electrodes on the Elements.Lap the Elements to Achieve Tight Dimensional Tolerances: ±5 µm for Each Element. Sinter the Elements to Fuse the Piezoelectric Pressed Powder and Grow PZT or BSPT Crystals.Purge Solvent and Binder Material Residues by Heat Treating the Elements.Dice the Block into Individual Elements.Consolidate the Layered Sheets in an Isostatic Press.
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