Corning Macor Machinable Glass

MACOR® machinable glass ceramic is recognized worldwide to be a major technological innovation, as well as a technical solution for a wide range of industrial applications.
Opening a wide range of possibilities MACOR® gives the performance of a technical ceramic with the versatility of a high performance polymer, while providing the machinability of a soft metal.As a result, MACOR® is an outstanding engineering material which can quickly be designed into highly complex shapes, using conventional metalworking tools.
Unique composition - MACOR® can be considered unique as its composition comprises 55% fluorophlogopite mica
General properties - MACOR® offers a unique combination of properties, unlike any other technical material. It is a white, nonwetting, odorless and non outgassing material that exhibits zero porosity.
Extremely machinable, MACOR® offers tight tolerances capabilities, allowing complicated shape design (optimal performances up to +/- 0.013 mm for dimensions, < 0.5 μm for finished surface and up to 0.013 μm for polished surface).
MACOR® remains continuously stable at 800 °C, with a maximum peak at 1000 °C under no load, and unlike ductile materials, doesn’t creep or deform.
Its coefficient of thermal expansion readily matches most metals
and sealing glasses.
As an electric insulator, particularly at high temperatures, it is excellent at high voltages and a broad spectrum of frequencies.
Material Forms - Corning supplies MACOR® as slab and rod. High precision finished parts are manufactured by our specialist partners.