Product Name:
Zirconia Ceramic Electronic Structural Components
Product Material:
Yttria-Stabilized Tetragonal Zirconia Polycrystals (Y-TZP), with Partially Stabilized Zirconia (PSZ) or Zirconia Toughened Alumina (ZTA) composites optional.
Material Characteristics:
Exceptional fracture toughness (highest among ceramics, K₁c: 8-12 MPa·m¹ᐟ²), High flexural strength (>1000 MPa), Excellent wear resistance and low friction coefficient, Superior chemical stability and bio-inertness, Moderate thermal conductivity and relatively low coefficient of thermal expansion (~10×10⁻⁶/K), Good electrical insulation (volume resistivity >10¹⁰ Ω·cm), Tunable phase structure and surface properties, Excellent aging resistance (resistant to low-temperature degradation).
Application Fields:
Precision fixtures, probe card insulating bases, and耐磨 parts for handlers in semiconductor packaging and test equipment; Precision sleeves and alignment ferrules in fiber optic connectors; Structural housings and insulators for various high-precision sensors (e.g., oxygen, pressure sensors); Electrolyte membranes and bipolar plate coatings in fuel cells; Wear-resistant bearings, bushings, and decorative components for high-end watches and precision instruments.
Application Industries:
Semiconductor manufacturing and packaging, Aerospace (avionics, sensors), Biomedical (dental implants, femoral heads), New Energy (fuel cells, solid-state batteries), Electronic Engineering (5G communications, fiber optic connectivity), Advanced Mechanical Equipment (precision instruments, high-wear transmission components).
Processing Difficulties:
Controlling the tetragonal-to-monoclinic phase transformation to achieve optimal toughness; Controlling grain growth during sintering to obtain a uniform and fine microstructure; Molding and controlling sintering deformation for high-precision complex shapes; Achieving mirror-grade surface polishing (Ra < 0.01 μm) and ultra-precise dimensional tolerances (e.g., ±1 μm); Avoiding edge chipping during machining of thin-walled or miniature components; Ensuring high bonding strength of metallization layers (e.g., brazing or plating) under thermal cycling.
Processing Flow:
Preparation and dispersion of high-purity nano-zirconia powder → Injection molding, tape casting, or dry pressing → Debinding (binder removal) → High-temperature sintering (typically 1400-1550°C) → Precision CNC grinding and milling (using diamond or CBN tools) → Laser drilling or cutting (for micro-holes/complex shapes) → Multi-step precision polishing (from rough polishing to chemical mechanical polishing CMP) → Surface treatment (sandblasting, polishing, laser texturing, or metallization) → Rigorous quality inspection (dimensions, roundness, parallelism, surface roughness, phase composition analysis) → Cleanroom packaging
Delivery Period:
Standard shapes and tolerance components: 40-60 days
High-precision / complex 3D structures / mirror-polished components: 70-110 days (including phase stability and reliability testing)
Zirconia Ceramic Electronic Structural Components represent the highest demands for mechanical reliability, dimensional stability, and environmental tolerance in critical structural parts within modern high-tech electronics and precision equipment. Leveraging its unique transformation toughening mechanism, Yttria-Stabilized Zirconia (Y-TZP) possesses fracture toughness approaching that of some metals while retaining the inherent advantages of ceramics such as hardness, wear resistance, and insulation. This enables it to fulfill critical applications with zero tolerance for brittle fracture, where traditional ceramics or metals fall short.
Key Features:
Exceptional Mechanical Reliability – Fracture Resistance and Wear Resistance – The transformation toughening effect of zirconia effectively inhibits crack propagation, allowing it to withstand higher mechanical shock and cyclic loading, addressing the pain point of traditional ceramics being prone to chipping during installation or use. Simultaneously, its high hardness and low friction coefficient ensure an extremely low wear rate under prolonged sliding or contact friction, extending the service life and calibration cycles of precision equipment.
Superior Structural and Dimensional Stability – The material has a moderate coefficient of thermal expansion, allowing for good compatibility with various alloys and reducing thermal stress. Its high stiffness ensures minimal deformation of components under load or temperature variation, which is crucial for maintaining optical alignment accuracy, electrical connection stability, or mechanical transmission precision.
Broad Chemical and Biocompatibility – Zirconia exhibits outstanding corrosion resistance to most acids, alkalis, and organic solvents, with no risk of metal ion leaching. This makes it highly suitable for semiconductor wet process equipment, chemical sensor housings, and the insulating interfaces or enclosures for biomedical implantable electronic devices, ensuring long-term operational purity and safety.
