High Quality 99% Alumina Ceramic Sheet Al2o3 Plate

Our aluminum oxide plates (Al2O3) and porous alumina ceramic substrates are engineered for superior thermal management, electrical insulation, and chemical resistance. Ideal for heating elements, sensors, catalysts, and electronic packaging, our high-purity alumina ceramic plates deliver unmatched performance in extreme environments.

Industry Applications & Case Studies

1、Heating Elements & Thermocouple Insulation

Our alumina ceramic thin sheets are used in high-temperature heaters, providing uniform heat distribution and electrical isolation.

2、Catalyst Supports & Chemical Filtration

The controlled porosity of our aluminum oxide plates makes them ideal for catalytic converters and gas filtration.

3、Electronics & Sensors

Used as insulating substrates for thin-film sensors, power electronics, and RF components due to low dielectric loss.

4、Industrial Wear Protection

Alumina ceramic plates serve as abrasion-resistant liners in machinery, extending component lifespan.

 Technical Specifications

• Material: 99% Alumina Ceramic (Al₂O₃)

• Density: ≥3.8 g/cm³

• Flexural Strength: 300-400 MPa

• Dielectric Strength: 15-25 kV/mm

• Thermal Expansion: 8.0×10⁻⁶/°C

• Surface Finish: Smooth or customized (glazed/matte)

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

Packaging and shipping

﹡Company

Yixing Shengda Refractory Ceramic Co, Ltd. was established in Yixing City, China in 1995, witha production area of over 10,000m2. lt is an enterprise specializing in the production of aluminaceramic,zirconia ceramic,slicon nitride, silicon carbide and other precision ceramic products. 

And we also produce ceramic band heaters, ceramic terminal block, cordierite and mullite ceramic parts an other ceramic products.

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)