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Formula: Al₂O₃ 62/SiO₂ 24/B₂O₃ 14
Form: Fabric
Material: Alumina/Silica/Boria
Commodity: Ceramics
Thickness: 0.41mm
Coil Width: 25.4mm
Fabric Weight: 400g/m²
Weave: Plain
Warp Yarn: 200
Weft Yarn: 200

Alumina/Silica/Boria Fabric Coil (Al₂O₃ 62/SiO₂ 24/B₂O₃ 14)

Alumina/Silica/Boria Fabric Coil (Al₂O₃ 62/SiO₂ 24/B₂O₃ 14) is a high-temperature resistant insulation material offered in Goodfellow's range of specialty fabrics. Its alumina, silica and boria composition gives the fabric excellent thermal and electrical insulating properties up to 1600°C, making it suitable for extreme environments. With 7 different variations available, these coils can be tailored for applications like fire barrier textiles, high-temperature electrical insulation, thermal protection systems and refractory linings.
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Tolerances

Coil
Length +10% / -0%
Coil
Thickness ±25%
Number Of Yarns ±10%
Tex Number ±10%
Coil
Thickness ±25%
Number Of Yarns ±10%
Tex Number ±10%

Material Properties for Ceramics

Chemical Resistance
Element Value
Acids - concentrated Fair
Acids - dilute Good
Alkalis Poor-Fair
Metals Good
Electrical Properties
Element Value
Dielectric constant 5.2@9.4GHz
Physical Properties
Element Value
Refractive index 1.57
Apparent porosity( % ) 0
Water absorption - saturation( % ) 0
Density( gcm⁻³ ) 2.7
Thermal Properties
Element Value
Sublimation point( C ) 1800
Upper continuous use temperature( C ) 1200-1400
Specific heat( J K⁻¹ kg⁻¹ ) 1100@25°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 3@20-1000°C
Mechanical Properties
Element Value
Tensile modulus( GPa ) 140
Tensile strength( MPa ) 1700

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