Machine Like Metal, Perform Like Ceramic
Taking vacuum environment application as an example, the unique advantages of Macor sheet are:
- The outgassing rate (10-9) is 100 times lower than that of alumina (10-7) .
- The vacuum service life can reach more than 10 years.
- At the same time, it maintains metal-level machinability, which is unattainable by other high-performance ceramics.
Macor Sheet Manufacturer
Transform your high-performance designs with Macor – the only machinable glass ceramic that bridges the gap between metal’s workability and advanced ceramic’s extreme capabilities. It can be machined with common metalworking tools and offers thermal stability to 1000℃, zero outgassing in vacuum and excellent dielectric strength – critical for semiconductor, aerospace and medical applications.
You can trust us because we have more than 15 years of technical expertise in advanced ceramics. We can customize the size, thickness and surface treatment for you, implement strict quality control, and offer great prices. Contact us for quotes, or technical consultation today!
Product By Features
The most outstanding feature of Macor is that they can be processed by turning, milling, planing, grinding, drilling, sawing and tapping with standard metal processing tools and equipment. It can be processed into various products with complex shapes and high precision requirements.
Right-angled sides, aspect ratio <3:1. Used for laboratory micro fixtures, semiconductor equipment linings, etc.
Centrosymmetric structure. Used for laser mirror base substrate, vacuum chamber observation window flange, etc.
Used for multi-stage sealing gaskets, electronic packaging substrates, etc.
Through hole (for heat dissipation/filtering) or blind hole (depth ≤ 80% thickness) design.
Macor vs. Traditional Ceramics
In semiconductor manufacturing, material properties directly determine equipment life and wafer yield. Although traditional ceramics (such as alumina and aluminum nitride) are resistant to high temperatures, they are difficult to process precisely. Macor machinable glass ceramics perfectly solve this contradiction.
Case: An EUV lithography machine manufacturer used Macor to replace alumina, saving US$2.2 million in processing consumables annually. This is because Macor:
- Easy to Process like Metal
– CNC direct molding eliminates post-sintering processing costs (5 times more efficient than alumina processing).
– No cracking on the edge. 0.1mm precision holes can be achieved (key requirements for lithography machine components).
- Zero Failure in Extreme Environments
– Zero outgassing under vacuum (<10-9Torr·L/s) to avoid wafer contamination.
– Resistant to plasma corrosion (3 times longer life than silicon nitride).
- Lower Overall Cost
One Macor insulating board can replace the “metal + ceramic” composite design (30% weight reduction).
Please refer to the Macor vs Alumina Ceramic comparison table below.
| Feature | Macor (Machinable Glass Ceramic) | Alumina Ceramic (Al2O3) |
| Machinability | Can be directly CNC turned/milled/drilled (similar to metal) | Extremely difficult to process |
| Operating Temperature | Continuous use: 800℃
Peak: 1000℃ |
1600℃ |
| Coefficient of Thermal Expansion (CTE) | 9.3×10-6/K (close to metal), Not prone to cracking when connected to metal | (7-8)×10-6/K |
| Dielectric Strength | 40-50 kV/mm | 15-20 kV/mm |
| Vacuum Performance | Zero outgassing (<10-9Torr·L/s) | May release trace amounts of gas |
| Typical Costs | The unit price of materials is higher, but the comprehensive processing cost is 50% lower. | The material is cheap, but the processing cost is extremely high. |
Yes, but the right adhesive and surface treatment process must be selected to ensure long-term stability and strength.
- Key Challenges in Bonding
– Mismatched coefficient of thermal expansion (CTE): Macor (9.3×10⁻⁶/K) vs aluminum (23×10⁻⁶/K) or copper (17×10⁻⁶/K). Risk: Stress is easily generated when the temperature changes, causing the adhesive layer to crack or fall off.
– Poor surface wettability: Macor is a low surface energy ceramic, and ordinary glue has insufficient adhesion.
- Recommended Bonding Solutions
(1) Low temperature applications (≤150℃) – epoxy resin
(2) Medium and high temperature applications (150~300℃) – polyimide/cyanoacrylate
(3) Ultra-high temperature/permanent connection – glass solder or metallized brazing.
The safe operating temperature range of Macor sheet is:
– Oxidizing environment: ≤800℃ (such as observation windows of heat treatment equipment).
– Vacuum/inert gas: ≤1000℃ (such as spacecraft heat shield).
– Under mechanical load: ≤600℃ is recommended (bending strength decreases with increasing temperature).