99% Alumina Ceramic Slabs Plate Sheet Alumina Plate

Our 99% alumina ceramic slabs (plates/sheets) are engineered for superior mechanical strength, exceptional thermal stability, and outstanding electrical insulation. These high-purity alumina plates are widely used in semiconductor processing, furnace linings, laser systems, and chemical-resistant applications. With excellent wear and corrosion resistance, they outperform traditional materials like steel or quartz in extreme conditions.

Key Features & Benefits

✔ High Purity (99% Al₂O₃) – Ensures maximum thermal and chemical stability.
✔ Extreme Temperature Resistance – Withstands up to 1600°C without deformation.
✔ Superior Hardness (Mohs 9) – Exceptional wear resistance for long-lasting performance.
✔ Excellent Electrical Insulation – Ideal for high-voltage and electronic applications.
✔ Corrosion & Acid Resistance – Resists harsh chemicals, including acids and alkalis.
✔ Precision Machining Available – Custom sizes, thicknesses, and surface finishes.

Applications of Alumina Ceramic Plates

1. Semiconductor & Electronics Manufacturing

• Wafer processing carriers – Resists plasma erosion in CVD/PVD systems.

• Insulating substrates – Used in high-power electronic devices and sensors.

2. High-Temperature Furnace & Kiln Components

• Heat-resistant linings – Protects furnace walls from thermal shock.

• Sintering trays – Ideal for powder metallurgy and ceramic firing.

3. Laser & Optical Systems

• Laser reflector bases – Low thermal expansion ensures beam stability.

• UV/IR-transparent windows – Used in specialized optical setups.

4. Chemical & Petrochemical Industry

• Corrosion-resistant baffles & liners – Handles aggressive acids and solvents.

• Wear-resistant chutes & hoppers – Extends equipment lifespan in abrasive environments.

5. Medical & Laboratory Equipment

• Biocompatible surgical tools – Non-reactive and sterilizable.

• Lab work surfaces – Resists chemical spills and high heat.

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Whether you need alumina plates for industrial, electronic, or laboratory use, our high-performance ceramic slabs provide unmatched durability. Contact us for custom specifications, samples, and bulk pricing!

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Main Features:

1. High hardness

2. High heat resistance

3. Good wear resistance

4. High electrical resistivity

5. High corrosion resistance

Performance:

1. The strong acid and alkali resistance of zirconia ceramic shall be better than other materials.

2. Zirconia ceramics are not easy to wear, with strong durability. The hardness is close to the natural diamond and light than metals, also has the gem properties such as never wear and non - discoloring.

3. Can maintain the mechanical strength under high temperature, can be used in the condition with high temperature.

4. Good surface finish quality, could get more glossy smooth surface. Small coefficient of wear, with quite good self - lubricating function, non - magnetic, electric insulation, static - free, anti interference and radiation.

Technical Parameters

Production process

1. Grind and crush the raw materials to be slurry or powder

2. se-different method to making the slurry or powder into semi-finished products

3. Put the semi-finished products into the kiln for dewaxing and sintering;

4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.

5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery

Certifications

Our customers

Packaging and shipping

Transport

FAQ：

Q: Do you have the products in stock? 

A: Some standard produce have in stock, such as ceramic band heater insulator; bobbin heater insulator and ceramic connector. But it needs to check according to your requirement.

Q: How do you pack the goods?

A: Our standard packaging is carton, we can customize it as per your requirement as well.

Q: How many days do you finish the sample?

A: Usually 15 business days (Including 8days for making furnaces and 7days for producing samples)