Project Description

Macor ® Machinable Glass Ceramic

Macor® is a machinable glass ceramic material that posses outstanding engineering properties. Unlike other ceramics Macor® can be machined with ordinary metalworking tools. Macor® is also a problem solving material combining the performance of a technical ceramic with the versatility of a high performance plastic. Macor® has no porosity and when properly baked out and will not outgas. It is strong, rigid and, unlike high temperature plastics, will not creep or deform and is also radiation resistant. MACOR® remains continuously stable at 800 °C, with a maximum peak at 1000 °C under no load.

Key Benefits

  • Easily machinable
  • Withstands high temperatures
  • Low thermal conductivity
  • Electrical insulator
  • Zero porosity and no out gassing
  • Strong & rigid
  • Highly polishable
  • can be soldered to a wide range of material
  • Radiation resistant
  • Lead free

Advanced Finishing Services

  • Precision grinding and lapping
  • Laser machining
  • Engineering design and support
  • Metallizing
  • Threaded components
Macor Glass Ceramic

Material Properties (Macor Glass Ceramic)

Density  2.52 g/cm3
Porosity 0%
Young’s Modulus, 25°C 66.9 GPa
Poisson’s Ratio 0.29
Shear Modulus, 25°C 25.5 GPa
Hardness, Knoop, 100g 250
Rockwell A 48
Modulus of Rupture, 25°C 94 MPa
Compressive strength 345 MPa
Fracture Toughness 1.53 MPa m0.5
Thermal
Coefficient of Expansion
-200 to 25°C 74×10-7/°C
25 to 300°C 93×10-7/°C
25 to 600°C 114×10-7/°C
25 to 800°C 126×10-7/°C
Specific Heat, 25°C .79KJ/kg°C
Thermal Conductivity, 25°C 1.46 W/m°C
Thermal Diffusivity, 25°C 7.3×10-7m2/s
Continuous Operating Temperature 800°C
Maximum No Load Temperature 1000°C
Electrical
Dielectric Constant, 25°C
1 KHz 6.03
8.5 GHz 5.67
Loss Tangent, 25°C
1KHz 4.7×10-3
8.5 GHz 7.1×10-3
Dielectric Strength (AC) avg

(at 0.3mm thickness and 25°C)

 9.4 KV/mm
Dielectric Strength (DC) avg.

(at 0.3mm thickness and 25°C)

 62.4 KV/mm
DC Volume Resistivity, 25°C >1016 ohm-cm
*The chart is intended to illustrate typical properties. Property values vary with method of manufacture, size, and shape of part. Data contained herein is not to be construed as absolute and does not constitute a representation or warranty for which Ortech, Inc. assumes legal responsibility.