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MACOR® Machinable Glass Ceramic

• is MACHINABLE with ordinary metal working tools
• allows FAST TURNAROUND, no post firing required
• holds TIGHT TOLERANCES, up to .0005”
• withstands HIGH TEMPERATURE, up to 1000ºC (no load)
• is CLEAN, no outgasing and zero porosity

With MACOR® Machinable Glass Ceramic
(MGC), fabrication is fast because it can
be machined into complicated shapes
and precision parts with ordinary metal
working tools, quickly and inexpensively,
and it requires no post firing after
machining. That means no frustrating
delays, no expensive hardware, no post
fabrication shrinkage, and no costly
diamond tools to meet specifications.

Properties

MACOR® Machinable Glass Ceramic has a continuous use temperature
of 800ºC and a peak temperature of 1000ºC. Its 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. When properly baked out, it won’t outgas in
vacuum environments.

Dielectric Strength (DC) avg.
(at 12 mil thickness and 25°C) 62.4 KV/mm 5206 V/mil