General Info
MACOR® Machinable Glass Ceramic (MGC) has a continuous use temperature of 800 C and a peak temperature of 1000 C. Its coefficient of thermal expansion readily matches most metals and sealing glasses. It is non-wetting, exhibits zero porosity, and unlike ductile materials, won't deform. It is an excellent insulator at high voltages, various frequencies, and high temperatures. When properly baked out, it won't outgas in vacuum environments.
Macor® is a white, odorless, porcelain-like (in appearance) material composed of approximately 55% fluorophlogopite mica and 45% borosilicate glass.
It contains the following compounds (in weight percent): Silicon, Si O2 46%, Magnesium, Mg O 17%, Aluminum Al2O3 16%, Potassium, K2O 10%, Boron, B2O3 7% & Fluorine, F 4%.
Macor® Machinable Glass Ceramic has a continuous use temperature of 800°C / 1472°F and maximum service temp of 1000°C / 1832°F with no load.
Macor® is WHITE in color.
DOWNLOAD OUR MACOR MACHINING GUIDELINES for Macor® Machinable Glass Ceramic machining information on grinding, polishing, turning, milling, drilling, tapping and sawing.
Key Properties
- Coefficient of Thermal Expansion Readily Matches Most Metals and Sealing Glasses.
- Excellent Insulator at High Voltages, Various Frequencies and High Temperatures.
- Nonwetting, Exhibits Zero Porosity, and Unlike Ductile Materials, Won't Deform
- When Properly Baked Out, It Won't Outgas in Vacuum Environments
Limitations
Applications
- Aerospace Industry - Retaining Rings, Radiation Detectors
- Constant Vacuum Applications - Microwave Spacers, Headers, Windows
- Fixtures, Electrodes, Burner Blocks
- Medical Equipment
- Nuclear-Related Experiments - Reference Cubes
- Ultra High Vacuum Environments
- Welding Nozzles
Resin Trade Names
Manufacturer Trade Names
Boedeker Plastics, Inc. stocks & supplies plastic sheet, rod, tube, film and custom profiles and machine parts from these shapes that are produced from plastic resin. In many cases the manufacturer of the shape has their own product trade name. If your specification calls for a specific resin grade or manufacturer trade name, we can supply a shape made from that resin to meet your specification or suggest an equal. If you require a specific resin or brand it must be specified at the time of order.
Available Sizes
Sheet Thickness 0.0625 inch to 2.000 inch
W x L 3 inch x 3 inch, 6 inch x 6 inch, 6 inch x 12 inch and 12 inch x 12 inch
Rod
Diameter .0625 inch to 3.000 inch
Lengths 3 inch, 6 inch and 12 inch
Also available in bar, tube and disks, please contact us for details.
