Custom Size Al2O3 Alumina Ceramic

Custom Size Al2O3 Alumina Ceramic

Alumina ceramics
Aluminum oxide powder has different purities,making it more widely used than any other ceramic material.Jingjing Technology can be adjusted according to the user's application and design,with targeted adjustments.Aluminum oxide products have superior characteristics such as strength,hardness,insulation,thermal conductivity,wear resistance,corrosion resistance,oxidation resistance,and high temperature resistance.It has been widely used in various fields such as industry,engineering,electronic instruments,sensing,transportation,lithium batteries,etc.

Material Characteristics of Alumina Ceramic for Semiconductor Equipment and Electronic Applications
1.Exceptional Hardness and Wear Resistance
Alumina (Al₂O₃) ceramics exhibit outstanding mechanical hardness—among the highest of all conventional engineering ceramics—second only to diamond. This intrinsic property confers exceptional resistance to abrasion, surface scratching, and mechanical wear, rendering alumina rods highly suitable for precision components subjected to repetitive contact or sliding motion in semiconductor manufacturing equipment.

2.Superior Electrical Insulation Performance
Alumina ceramic rods possess excellent dielectric strength, low dielectric loss, and stable electrical resistivity across a broad frequency and temperature range. These attributes make them ideal for critical insulation applications in semiconductor processing tools, high-voltage feedthroughs, and electrostatic chuck components.

3.High-Temperature Structural Stability
Alumina maintains its mechanical integrity, dimensional stability, and insulating capability under sustained elevated temperatures—up to 1600 °C in inert or oxidizing atmospheres. This thermal robustness supports reliable operation in high-temperature process chambers and furnace components.

4.Broad Chemical Resistance
The material demonstrates remarkable resistance to corrosion by strong acids (e.g., HCl, HNO₃), alkalis (e.g., NaOH), organic solvents, and oxidizing agents—even under elevated temperatures and prolonged exposure. This enables safe deployment in aggressive chemical etching, cleaning, and deposition environments.

5.Low and Predictable Thermal Expansion
With a coefficient of thermal expansion (CTE) of approximately 7–8 × 10⁻⁶ K⁻¹, alumina exhibits significantly lower thermal expansion than most metals and metallic alloys. Its minimal dimensional change over wide temperature ranges ensures precise alignment, reduced thermal stress at interfaces, and long-term reliability in thermally cycled systems.

Applications:
Semiconductor Equipment
Used as insulating support bars, guide rails, wafer handling components, and precision positioning parts in semiconductor manufacturing systems.

Electronic Industry
Widely applied in electronic insulation structures, circuit protection components, and sensor assemblies.

Industrial Machinery
Used in wear-resistant sliding systems, precision guides, mechanical insulation parts, and automation equipment.

Medical Equipment
Suitable for high-cleanliness medical devices due to excellent chemical inertness and biocompatibility.

Laser & Optical Systems
Can be used as insulating structural parts in laser equipment and optical alignment systems.

Our Factory

FAQ

1.Are you a trading company or a manufacturer?

We are a manufacturer.

2.Can you provide the free samples?

Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.

3.What's the delivery time?

7 working days for standard products,30 days for customized products.

4.What is the MOQ?

No limit to the quantity. We can offer the best proposal and solutions according to your condition.

5.Are alumina ceramic bars electrically insulating?

Yes. Alumina ceramics provide excellent electrical insulation and are widely used in electronic and semiconductor industries.