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Master Bond adhesives

3M Nextel™ BF-40 Woven Fabric 440
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes:

Information provided by 3M

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Physical PropertiesMetricEnglishComments
Density 3.05 g/cc0.110 lb/in³
Permeability 3535[ft3/min/ft2], Air w/o sizing
Thickness 970 microns38.2 mil
Fiber Count 2220 dtex2000 denier1/2
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 2000 MPa290000 psifilament 25.4mm
Tensile Modulus 186 GPa27000 ksifilament
Tear Strength 45.1 kN/m258 pliFill, Breaking Strength w/o Sizing
 59.8 kN/m342 pliWarp, Breaking Strength w/o Sizing
 
Electrical PropertiesMetricEnglishComments
Dielectric Constant 5.7
@Frequency 9.375e+9 Hz
5.7
@Frequency 9.375e+9 Hz
Dissipation Factor 0.015
@Frequency 9.375e+9 Hz
0.015
@Frequency 9.375e+9 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear 5.30 µm/m-°C
@Temperature 100 - 1100 °C
2.94 µin/in-°F
@Temperature 212 - 2010 °F
Specific Heat Capacity 1.13 J/g-°C
@Temperature 500 °C
0.270 BTU/lb-°F
@Temperature 932 °F
Melting Point 1800 °C3270 °F
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.6141.614
 
Component Elements PropertiesMetricEnglishComments
Al2O3 70 %70 %
B2O3 2.0 %2.0 %
SiO2 28 %28 %

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PMM33017 / 167764

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