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Mica has an estimable electrical, physical, mechanical and thermal pertinacity properties. It has high transparency, optical clarity, flatness, non-breakability and heat resistance. As such, it is suitably used as windows in Kerosene stove, Wood stoves, Furnace peep-holes and microwave ovens.
Mica eliminates risk of cracks, breakage, jerks and can easily withstand shocks, strains and vibration during operations at higher temperatures and prevent grassing. Mica also provide complete safety, versatility, durability and reliability and retain its basic strength.
Mica sheet can be expose to high temperature up to ~ 540 °C (~1000F)
2.6 - 3.2 g/cm³ at 20 °C
Coefficient of thermal expansionα
8E-6 - 9E-6 1/K at 200 °C
Coefficient of thermal expansion, transverseαtrans
1.5E-5 - 2.5E-5 1/K at 100 °C
Max service temperatureTmax
400 - 500 °C
Specific heat capacitycp
0.21 J/(kg·K) at 25 °C
8 W/(m·K) at 20 °C
6.5 - 9 [-] at 20 °C
1.00E+10 - 1.00E+13 Ω·m at 20 °C
0.08 - 0.09 [-] at 25 °C
Optical axial angleα
38 - 47 °
Optical plane orientation
Perpendicular to plane of symmetry
Refractive index, αnd,α
1.55 - 1.57 [-]
Refractive index, βnd,β
1.58 - 1.61 [-]
Refractive index, γnd,γ
1.59 - 1.61 [-]
Rigid or flexible mica sheets can be used for electrical insulating, high temperature mica washers, mica gaskets, heaters manufacturing and many other applications
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This material data has been provided by Goodfellow.