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Mykroy/Mycalex MM 800 Machining Grade Glass-bonded Mica Composite

Category Ceramic , Glass , Glass Ceramic , Machinable Ceramic
Manufacturer Mykroy/Mycalex, Crystex Composites
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Mykroy/Mycalex MM 800 Machining Grade Glass-bonded Mica Composite.pdf
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Material Notes:
MM 800 (formerly MM 1600) is a compression molded glass mica composite that is the perfect alternative to high performance plastics where high temperature, good dielectric strength and good arc resistance are required. This material is softer than other high temperature machinable ceramics allowing for the fabrication of intricate or complex shapes. It can be drilled or tapped and can accommodate helical inserts. In addition, no post firing is required after fabrication.Product Benefits:Higher operating temperatureExceptional dimensional stabilityHigh compressive strengthHigher thermal shock resistanceCompletely inorganicDoes not burn or outgasImpervious to moisture, oils, and gasesWithstands thermal cyclingLow thermal conductivityHigh dielectric strengthLow electrical lossHigh arc resistanceVacuum tightCan be glued with epoxy, sealing glass, or ceramic adhesivesSynthetic Mica FillerGlass bonded mica specification ASTM D1049.Typical data below provided by Mykroy/Mycalex Ceramics.
Physical Properties Metric English Comments
Density 2.74 g/cc
0.0990 lb/in³
Water Absorption 0.00 %
0.00 %
Mechanical Properties Metric English Comments
Hardness, Rockwell A 47
47
Hardness, Rockwell H 90
90
Tensile Strength at Break 41.4 MPa
6000 psi
Modulus of Elasticity 79.3 GPa
11500 ksi
Flexural Strength 93.1 MPa
13500 psi
Compressive Strength 276 MPa
40000 psi
Izod Impact, Notched 0.961 J/cm
1.80 ft-lb/in
Thermal Properties Metric English Comments
CTE, linear 9.00 µm/m-°C

@Temperature 25.0 °C
5.00 µin/in-°F

@Temperature 77.0 °F
10.46 µm/m-°C

@Temperature 250 °C
5.811 µin/in-°F

@Temperature 482 °F
10.69 µm/m-°C

@Temperature 500 °C
5.939 µin/in-°F

@Temperature 932 °F
15.81 µm/m-°C

@Temperature 750 °C
8.783 µin/in-°F

@Temperature 1380 °F
Specific Heat Capacity 0.874 J/g-°C
0.209 BTU/lb-°F
Thermal Conductivity 1.02 W/m-K
7.08 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 870 °C
1600 °F
Continuous
Electrical Properties Metric English Comments
Volume Resistivity 2.60e+15 ohm-cm
2.60e+15 ohm-cm
Surface Resistivity per Square 5.00e+13 ohm

@Temperature 25.0 °C
5.00e+13 ohm

@Temperature 77.0 °F
Dielectric Constant 6.91

@Frequency 1e+6 Hz
6.91

@Frequency 1e+6 Hz
Dielectric Strength 18.9 kV/mm
480 kV/in
Dissipation Factor 0.0030

@Frequency 1e+6 Hz
0.0030

@Frequency 1e+6 Hz
Dielectric Loss Index 0.0207
0.0207
I MHz
Arc Resistance 300 sec
300 sec
Descriptive Properties Value Comments
Color Off White
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