Sealing Part Alumina Ceramic Washer Shim Alumina Wafer

High-Precision Alumina Ceramic Washer Shim | Industrial-Grade Alumina Wafer Solutions

Our alumina ceramic washer shims are engineered for extreme environments, delivering unmatched dielectric strength and thermal stability. These 99.6% pure Al₂O₃ wafers meet MIL-STD-883 standards for high-reliability applications.

Key Advantages for Industrial Applications:

1、Semiconductor Processing
Our alumina wafers serve as ideal diffusion plates in CVD chambers, withstanding 1450°C process temperatures while maintaining ±0.5% flatness tolerance for uniform deposition.

2、Power Electronics Insulation
Case Study: Implemented in EV battery modules as insulating washers, reducing thermal resistance by 40% compared to polymer alternatives in 800V systems.

3、Laser Equipment Components
The 99.6% alumina composition provides >98% reflectivity for CO₂ laser wavelengths (10.6μm), making these wafers perfect for beam delivery system mounts.

4、Ultra-High Vacuum Systems
Tested to maintain <1×10⁻⁹ Torr leak rates, our ceramic shims are NASA-qualified for spaceflight instrument mounting.

Customization Options:

- Through-hole configurations (0.1-5mm diameter)

- Metallized edges for brazing (Mo-Mn or W coatings)

- Precision lapping to λ/4 optical flatness

- Laser-marked serialization for traceability

Ceramic Properties

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)