Product Name: Boron Nitride Tube
Material: High-Purity Boron Nitride (BN)
Material Characteristics: Excellent thermal stability, superior thermal shock resistance, electrical insulation, chemical inertness, low thermal expansion
Application Fields: High-temperature thermocouple protection, semiconductor processing, metallurgical casting, laboratory reactors
Application Industries: Semiconductor, metallurgy, aerospace, research institutions
Processing Challenges: Maintaining wall thickness uniformity, preventing deformation during sintering, achieving precise inner/outer diameter control
Processing Flow: Powder preparation → Isostatic pressing → High-temperature sintering → CNC grinding → Quality inspection → Packaging
Delivery Time: 40-55 days for standard sizes, 60-80 days for customized specifications
Key Features:
Exceptional Thermal Stability - Withstands continuous operation at temperatures up to 2000°C in inert atmospheres while maintaining structural integrity and dimensional stability.
Superior Thermal Shock Resistance - Withstands rapid temperature changes exceeding 1500°C without cracking or degradation, ensuring reliable performance in thermal cycling applications.
Excellent Electrical Insulation - High volume resistivity (>10¹⁴ Ω·cm) and dielectric strength (>15 kV/mm) provide reliable electrical isolation in high-temperature environments.
Outstanding Chemical Inertness - Highly resistant to most molten metals, acids, and corrosive gases, ensuring long-term performance stability in aggressive chemical environments.
Precision Dimensional Control - Maintains tight tolerances (±0.05 mm) on both inner and outer diameters, ensuring perfect fit in precision assembly applications.
Low Thermal Expansion - Coefficient of thermal expansion (CTE) of 0.5-4.0×10⁻⁶/°C ensures dimensional stability under thermal cycling conditions.
