Morgan Advanced Ceramics MACOR® Mac-MGCW Machinable glass ceramic

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Morgan Advanced Ceramics MACOR® Mac-MGCW Machinable glass ceramic
Categories:	Ceramic; Machinable Ceramic
Material Notes:	Macor® is the machinable glass ceramic made by Corning Glass and widely used for critically exacting electrical duties. It is a composite of oxides of Si, Mg, Al, K, B and F. Prime Features: Easily machined into complex shapes and precision components Swift and inexpensive to shape using standard machine tools Vacuum tight Excellent dielectric strength Very high volume resistivity Low thermal conductivity Dimensionally stable Typical Applications: Vacuum feed-thrus Defense equipment Nuclear related components Production Capabilities: Distributor of Corning MACOR® in USA and France Wide variety of sizes stocked Machining of simple or complex components to customer specification Information provided by Morgan Advanced Materials
Key Words:	MACOR ®
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Physical Properties	Metric	English	Comments

Bulk Density	2.52 g/cc	0.0910 lb/in³
Open Porosity	0.00 %	0.00 %	fully dense, apparent

Mechanical Properties	Metric	English	Comments
Hardness, Knoop	250	250	[kg/mm2]
Modulus of Elasticity	68.0 GPa	9860 ksi
Flexural Strength	89.0 MPa	12900 psi
Compressive Strength	345 MPa	50000 psi

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+14 ohm-cm @Temperature 25.0 °C	>= 1.00e+14 ohm-cm @Temperature 77.0 °F
	>= 1.00e+14 ohm-cm @Temperature 300 °C	>= 1.00e+14 ohm-cm @Temperature 572 °F
Dielectric Constant	6.03 @Frequency 1e+6 Hz, Temperature 25.0 °C	6.03 @Frequency 1e+6 Hz, Temperature 77.0 °F
Dielectric Strength	39.4 kV/mm	1000 kV/in

Thermal Properties	Metric	English	Comments
CTE, linear	9.30 µm/m-°C @Temperature 25.0 - 300 °C	5.17 µin/in-°F @Temperature 77.0 - 572 °F
	9.30 µm/m-°C @Temperature 25.0 - 1500 °C	5.17 µin/in-°F @Temperature 77.0 - 2730 °F
Thermal Conductivity	1.46 W/m-K	10.1 BTU-in/hr-ft²-°F	calculated
Maximum Service Temperature, Air	1000 °C	1830 °F

Descriptive Properties
Color	white

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CMORF5072 / 200310

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