Circular Multi-Layer Stack Piezoelectric Ceramic

Circular Multi-Layer Stack Piezoelectric Ceramic

Revolutionizing axial drive performance through coaxial multi-layer innovation, achieving unparalleled balance between precision and power density in compact spaces. As specialized manufacturers, we deliver reliable high-speed customized solutions via material advancements and refined processes, empowering breakthroughs in optical, medical, and industrial precision equipment.

Structural Design

● Coaxial Multi-Layer Stack: 50-500 ultra-thin circular ceramic discs axially stacked with concentric electrodes aligned to the electric field direction, enabling efficient longitudinal deformation with displacement scaling linearly with layer count.

● Uniform Preload System: Integrated annular spring or Belleville washer mechanism applies axial pressure to prevent delamination, enhancing shock resistance and high-frequency stability.

● Space-Saving Encapsulation: Lightweight alloy/ceramic housing with insulated coating supports threaded or flange mounting for standard mechanical interfaces.

Material Properties

● High Piezoelectric Activity: PZT-based material with d33≥650 pC/N, enhanced by nano-doping for 5X higher electromechanical efficiency than single-layer ceramics.

● Low Thermal Drift: Matched thermal expansion coefficients between ceramic/electrode materials achieve <0.02%/°C drift and 99% displacement stability from -25°C~130°C.

● Aging Resistance: High-temperature aging treatment ensures <1% dielectric loss (tanδ) and <3% piezoelectric degradation over 10-year service.

Core Advantages

● Low-Voltage High-Output: Operates below 200V with 300N/mm² force density, ideal for portable devices and low-power systems.

● Sub-Nanometer Precision: 0.5nm displacement resolution and <0.05% repeatability for ultra-precision optical focusing and micromachining.

● Microsecond Response: <50μs electromechanical response enables kHz-level dynamic control for real-time vibration suppression and fast valve actuation.

● Extended Lifespan: Adhesive-free full-sintering and optimized preload ensure >1×10⁸ cycles under continuous industrial operation.

Typical Applications

● Optics: Microscope objective nano-focusing, laser cavity length adjustment, adaptive optics wavefront correction.

● Fluid Systems: Micro-flow valve control, fuel injector piezoelectric nozzles, micropump diaphragm excitation.

● Acoustic Transduction: Ultrasonic cleaner transducer arrays, NDT probes, underwater sonar emitters.

● Industrial Automation: Semiconductor bond head force control, precision positioning stages, active vibration compensators.

● Medical Devices: Ultrasound probe actuation, minimally invasive surgical tool positioning.

Quality Commitment

● Full-Process QC: Automated inspection from tape casting to sintering ensures <±1μm layer thickness tolerance and >98% polarization uniformity.

● Customization Flexibility: Tailored diameters (5-100mm), layer counts, force/displacement parameters, and encapsulation styles with driver circuit co-design.

● 360° Support: Dynamic performance simulation, installation stress analysis, application-specific testing, and 24/7 technical consultation.