High Strength Alumina Ceramic Tube

Material Composition

• Primary constituent: 95-99.8% α-Al₂O₃ (corundum phase)
• Trace additives: MgO (0.1-0.5%) for grain growth inhibition
• Optional doping: ZrO₂ (3-5%) for toughening effect
• Thermal Characteristics
• Continuous service temperature: 1500-1650°C
• Thermal conductivity: 20-30 W/(m·K) at 1000°C
• Specific heat capacity: 0.88-1.05 J/(g·K)
• Thermal shock resistance (ΔT critical): 200-250°C
• Manufacturing Processes