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| Physical Properties |
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Material: Macor A porcelain-like material composed of 55% fluorophlogopite mica and 45% borosilicate glass. |
| This specification covers a new material used in the manufacture of Tecknit interconnection sockets. |
| Macor Capabilities: |
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Below are Typical Applications provided by the manufacturer. 1. Ultra High Vacuum Environments. 2. Constant Vacuum Applications: Microwave Spacers, Headers and Windows. 3. Aerospace Industry: Retaining Rings, radiation detectors. 4. Nuclear-Related Experiments: Reference cubes. 5. Welding Nozzles: Fixtures, Electrodes, Burner Blocks. 6. Medical equipment. |
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General Properties as provided by manufacturer. Macor machinable glass ceramic has a continuous use temperature of 800 °C. It's coefficient of thermal expansion readily matches most metals and sealing glasses. It is nonwetting, exhibits zero porosity and unlike ductile materials, won't deform. It is an excellent insulator at high voltages, various frequencies and high temperatures. And when properly baked out, it won't outgas in vacuum environments. Macor is "white" in color and odorless. |
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Physical Properties as provided by manufacturer: |
| Please refer to the chart below for the material specifications. |
| Macor |
| Physical Properties | ASTM or UL test method | Macor MGC |
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Density (lb/in3) (g/cm3) |
D792 |
0.091 2.52 |
| Water Absorption, 24 hrs (%) | D570 | 0.01 |
| Machanical Properties | ASTM or UL test method | Macor MGC |
| Compressive Strength (psi) | D 695 | 50,000 |
| Flexural Strength (psi) | D790 | 13,600 |
| Modulus of Elasticity (psi) | - | 9,700,000 |
| Shear Modulus (psi) | - | 3,700,000 |
| Poisson's Ratio | - | 0.29 |
| Hardness, Rockwell | D785 | A48 |
| Thermal | ASTM or UL test method | Macor MGC |
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Coefficient of Linear Thermal Expansion (x 10-6 in./in./ °F) |
D696 | 5.20 |
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Heat Deflection Temp. (°F / °C) at 264 psi |
D648 | 240 / 116 |
| Melting Temperature (°F / °C) | D3418 | none |
| Max Operating Temp (°F / °C) | - | 1832 / 1000 |
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Thermal Conductivity (BTU-in/ft2-hr-°F) (x 10-4 cal/cm-sec-°C) |
C177 |
10.16 34.9 |
| Flammability Rating | UL94 | none |
| Electrical | ASTM or UL test method | Macor MGC |
| Dielectric Strength (V/mil) short time, 1/8" thick | D149 | 1000 |
| Dielectric Constant at 1 KHz | D150 | 6.03 |
| Dissipation Factor at 60 Hz | D150 | - |
| Volume Resistivity (ohm-cm) at 50% RH | D257 | >1016 |
| Please Read |
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The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. All values at 73°F (23°C) unless otherwise noted. Contact www.boedeker.com for manufacturers complete material property datasheets. Or call toll free at 1-800-444-3485. For all other information contact TECKNIT Sales and Marketing Manager. |
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