Rectangular MACOR® Plates
Thick rectangular plates for precision machining, electrical insulation, and high-temperature components.
Other Advanced Ceramics
Rectangular MACOR® Machinable Glass Ceramic Sheets
Rectangular MACOR® machinable glass ceramic sheets for electrical insulation, vacuum equipment, semiconductor systems, and high-temperature applications. Available as cut-to-size blanks or custom-machined parts.
Component Types
Square MACOR® Plates
Cut-to-size square plates suitable for insulating supports, fixtures, and custom machined parts.
Thin MACOR® Sheets
Thin ceramic sheets for electrical insulation, thermal isolation, and precision equipment applications.
Detailed Product Information
Typical Material Properties
|
Property |
Typical Value |
|
Density |
2.52 g/cm³ |
|
Apparent Porosity |
0% |
|
Thermal Conductivity at 25°C |
1.46 W/m·K |
|
Continuous Operating Temperature |
800°C |
|
Maximum No-Load Temperature |
1000°C |
|
Young’s Modulus |
66.9 GPa |
|
Flexural Strength |
94 MPa |
|
Coefficient of Thermal Expansion, 25–300°C |
9.0 × 10⁻⁶/°C |
Values are typical material data and should not be treated as guaranteed specifications for every finished component.
Rectangular MACOR® Machinable Glass Ceramic Sheets
TecCera supplies rectangular MACOR® machinable glass ceramic sheets for electrical insulation, vacuum equipment, semiconductor systems, laboratory instruments, and high-temperature applications.
MACOR® combines the performance of a technical ceramic with the machinability of a softer engineering material. It can be turned, milled, drilled, tapped, and ground using conventional metalworking equipment. Because no post-firing is required after machining, prototypes and small production batches can be completed more efficiently than many conventional ceramic components.
Rectangular sheets are available as blanks or can be precision-machined according to your drawings, including holes, slots, pockets, threads, steps, and other complex features.
Key Features
- Easily machined using conventional metalworking tools
- No post-firing required after machining
- Continuous operating temperature up to 800°C
- Maximum temperature up to 1000°C under no-load conditions
- Excellent electrical insulation
- Low thermal conductivity
- Zero apparent porosity and low outgassing
- Good dimensional stability at elevated temperatures
- Non-magnetic and radiation-resistant
- Suitable for precision-machined and complex components
Typical Applications
Semiconductor and Electronics
- Electrical insulating plates
- Wafer-processing equipment components
- Coil supports and terminal blocks
- Sensor and electrode supports
- Precision fixtures and positioning parts
Vacuum and Laser Systems
- Vacuum chamber components
- Feedthrough supports
- Mirror and optical mounts
- Insulating spacers
- Low-outgassing structural components
Aerospace and Research Equipment
- High-temperature insulating components
- Instrument supports
- Sensor housings
- Radiation-resistant components
- Laboratory and analytical equipment parts
Custom Machining Options
TecCera can supply rectangular MACOR® sheets as cut blanks or finished components manufactured according to customer drawings.
Available machining features include:
- Custom length, width, and thickness
- Precision holes and counterbores
- Slots, grooves, pockets, and steps
- Internal and external threads
- Edge chamfers and radii
- Flatness and surface-finish control
- Prototype, small-batch, and production quantities
Final dimensions, tolerances, surface finish, and operating conditions should be confirmed during technical review.
Why Use MACOR® Instead of Alumina?
The main advantage of MACOR® is machinability. Alumina components normally require specialized ceramic forming, firing, and diamond grinding processes. MACOR® can be machined using conventional equipment without post-firing, making it particularly suitable for prototypes, low-volume orders, complex geometries, and designs that may require dimensional adjustments.
Alumina may still be the better choice when the application requires higher hardness, greater wear resistance, higher mechanical strength, or more demanding operating temperatures.
Frequently Asked Questions
Can MACOR® sheets be drilled or threaded?
Yes. MACOR® can be drilled, milled, turned, tapped, and ground using conventional metalworking equipment. Appropriate machining parameters and careful tool selection are required to minimize chipping.
Is MACOR® suitable for vacuum applications?
Yes. Its zero apparent porosity and low-outgassing characteristics make it suitable for many high-vacuum and ultra-high-vacuum components. Suitability should still be evaluated against the specific vacuum level, cleaning process, temperature, and sealing requirements.
What is the maximum operating temperature?
MACOR® can be used continuously at temperatures up to 800°C and can withstand short-term exposure up to 1000°C under no-load conditions.
Can you manufacture finished parts from MACOR® sheets?
Yes. We can machine MACOR® sheets according to your drawings, including holes, threads, slots, pockets, and stepped profiles. Send us your drawing, quantity, tolerances, surface-finish requirements, and operating conditions for evaluation.
Request a Quote
Looking for rectangular MACOR® sheets or custom-machined glass ceramic components?
Send TecCera your drawings or specifications, including dimensions, tolerances, quantity, operating temperature, and application requirements. Our team will review the manufacturability and provide a quotation.
MACOR® is a registered trademark of Corning Incorporated.