Product Name: Super-Large Alumina Ceramic Ring
Product Material: High-Purity Alumina Ceramic (Al₂O₃ ≥99.5%), with optional yttria-stabilized zirconia (YSZ) reinforcement for enhanced fracture toughness
Material Characteristics:
High bending strength (400-500 MPa), Excellent thermal stability (up to 1600°C), Low thermal expansion coefficient (7.8×10⁻⁶/°C), Superior wear resistance, Chemical inertness (resistant to acids, alkalis), High electrical insulation (>20 kV/mm), Low porosity (<0.1%), High dimensional stability under thermal cycling
Application Fields:
High-power laser resonators, Semiconductor wafer processing equipment, Industrial furnace components, Vacuum chamber seals, Petrochemical reactor linings, Nuclear waste containment vessels
Application Industries:
Advanced manufacturing, Aerospace, Energy generation (nuclear, solar), Semiconductor fabrication, Chemical processing, Defense technology
Processing Difficulties:
Preventing large-scale sintering cracks (>500mm), maintaining uniform density, achieving <0.05mm concentricity, controlling surface warpage, minimizing thick-wall residual stresses, avoiding grain growth defects, ensuring edge machining integrity.
Processing Flow:
Raw material purification → Granulation & large-scale isostatic pressing → Presintering with gradual temperature ramping → Coarse CNC turning (for rough shape) → Stress-relief annealing → Precision grinding (diamond wheels) → Fine lapping & polishing → Non-destructive testing (ultrasonic, X-ray) → Dimensional verification (CMM measurement) → Surface treatment (seal coating, optional) → Final inspection & packaging
Delivery Period:
90-120 days (standard designs), 120-180 days (custom ultra-large diameters >800mm)
The Super-Large Alumina Ceramic Ring is a precision-engineered component designed for extreme mechanical and thermal environments. Manufactured using advanced isostatic pressing techniques, this ring achieves exceptional strength and dimensional stability in sizes exceeding 500mm diameter. Its high purity and controlled microstructure ensure reliable performance in high-power lasers, vacuum systems, and corrosive chemical environments
Key Features:
