Application of 99% alumina ceramic

99 alumina ceramic (with ≥99% Al₂O₃ content) is a high-purity variant of alumina ceramic, featuring superior density, ultra-high hardness, excellent electrical insulation, and strong corrosion resistance. It is mainly applied in high-precision and harsh-environment scenarios such as electronics, semiconductors, automotive, and medical fields. Its specific applications are as follows:

1. Electronics & Semiconductor Industry (Core Application)

• High-Precision Electronic Substrates: Used as substrates for high-frequency power devices (e.g., SiC/GaN MOSFETs) and integrated circuits (ICs). Its high thermal conductivity (~28 W/(m·K)) and low dielectric loss (tanδ < 0.001 at 1 MHz) enable efficient heat dissipation and stable signal transmission, critical for high-power electronic systems (e.g., new energy vehicle inverters, 5G base station amplifiers).

• Semiconductor Processing Parts: Manufactures wafer carriers, plasma etching chamber liners, and quartz boat inserts. Its ultra-high purity (low impurity content < 0.1%) avoids contamination of wafers; it also resists corrosion from acid-base cleaning agents and high temperatures (withstands 1200°C annealing processes), meeting the strict requirements of semiconductor manufacturing (e.g., 7nm/5nm chip production).

• High-Voltage Insulation Components: Produces insulators for high-voltage vacuum switches and microwave communication devices. Its volume resistivity (≥10¹⁶ Ω·cm at room temperature) and breakdown voltage (≥20 kV/mm) ensure reliable insulation under high voltage, preventing electrical breakdown.

2. Automotive Industry (High-End Components)

• New Energy Vehicle (NEV) Power Systems: Used as ceramic substrates for battery management system (BMS) chips and insulation sleeves for high-voltage connectors. Its high insulation and heat resistance (long-term use up to 1600°C) adapt to the high-temperature and high-voltage environment of NEV power batteries, avoiding short circuits or component burnout.

• Precision Sensor Housings: Makes housings for automotive pressure sensors (e.g., fuel pressure sensors) and temperature sensors. Its high density (≥3.85 g/cm³) and low water absorption (<0.01%) prevent the penetration of automotive fluids (engine oil, coolant), ensuring sensor accuracy and long service life.

• Electric Drive System Parts: Applied in small-sized ceramic bearings for high-speed motors and insulation washers for motor stators. Its high hardness (Mohs hardness 9.2) and wear resistance reduce friction loss, extending the motor’s service life (up to 500,000 km for some NEV models).

3. Medical Field (High-Biocompatibility Applications)

• Biomedical Implants: Manufactures artificial joint femoral heads and dental implant abutments. Its high purity (no toxic impurities) and good biocompatibility (no tissue rejection) allow long-term integration with human tissues; its wear resistance (wear rate < 0.1 mm³/10⁶ cycles) ensures the implant’s service life (up to 20 years).

• Precision Medical Instruments: Produces components for surgical robots (e.g., micro-mechanical arms) and high-precision syringes. Its dimensional accuracy (tolerance ≤ ±0.005 mm) and smooth surface (Ra < 0.02 μm) enable precise operation of medical devices and easy sterilization (resistant to high-temperature autoclaving at 134°C).

4. Industrial Machinery & Precision Equipment

• Wear-Resistant Precision Components: Makes mechanical seals for high-pressure pumps, precision valve cores, and ceramic nozzles for laser cutting. Its high compressive strength (≥3800 MPa) and wear resistance (10–20 times that of stainless steel) withstand harsh conditions such as high-pressure fluid impact and continuous friction, extending part life by 3–5 times.

• High-Temperature Furnace Parts: Used as crucibles for melting precious metals (gold, silver) and heating element supports in industrial furnaces. Its high-temperature stability (melting point ~2050°C) and resistance to thermal shock (ΔT ≥ 300°C) prevent cracking under rapid temperature changes, suitable for high-temperature processing (e.g., metal smelting, ceramic sintering).

5. Aerospace & Defense (Special Environment Applications)

• Aerospace Electronic Insulation: Applied as insulation parts for satellite low-voltage circuits and missile guidance system components. Its stable performance in extreme temperatures (-200°C to 1500°C) and resistance to cosmic radiation ensure the reliability of aerospace electronics in harsh space environments.

• Precision Optical Components: Makes laser radar (LiDAR) window lenses for unmanned aerial vehicles (UAVs). Its high light transmittance (≥85% for visible light) and impact resistance (can withstand 100 m/s sand particle impact) ensure clear optical detection in complex environments.

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or Phone Number: +86 18018373518. To learn more about our company and the impact of our ceramic parts. We eagerly await your application to build a prosperous future together!