Ferrite (Ceramic) & Flexible Materials Properties

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Ferrite (Ceramic) & Flexible Materials Properties

 








 
Ferrite (Ceramic) - Magnetic Properties
Grade Type Br (kGauss) Hc (kOersteds) Hci (kOersteds) BHmax (MGOe) Temperature Coefficients (%/°C)
of Br of Hci
F1132 Fully Dense 2,20 1,90 3,25 1.1 -0.18 0.20
F3624 Fully Dense 3,95 2,40 2,45 3.6 -0.18 0.20
F3532 Fully Dense 3,90 3,20 3,25 3.5 -0.18 0.20
F4450 Fully Dense 4,30 4,15 5,00 4.4 -0.18 0.20
Flex 0.6 Flexible 1,725 1,325 1,340 0.6 -0.18 0.20
Flex 1.1 Flexible 2,20 2,00 2,40 1.1 -0.18 0.20
Flex 1.4 Flexible 2,45 2,20 2,40 1.4 -0.18 0.20
Flex 1.6 Flexible 2,65 2,20 2,40 1.6 -0.18 0.20

Note: Magnetic properties of fully dense ferrite materials degrade linearly with temperature. At 350° F, about 75% of room temperature magnetization is retained, and at 550° F, about 50% is retained. The maximum operating temperature for flexible ferrite materials is governed by the carrier; this is normally a vinyl compound and does not allow the material to operate above about 240° F.

Ferrite (Ceramic) - Physical Properties
Type Density Bending Strength Compressive Strength Electrical
Resistivity (Ωm)
Coeff. Of Thermal Expansion1 Curie Temperature
(kg/m3) (lbs/in3) (kg/m2) (lbs/in2) (kg/m2) (lbs/in2) // M ”´M (°C) (°F)
Fully Dense 4.9 x 103 0.180 1.4 x 103 2.0 x 104 9.1 x 103 1.3 x 105 1 x 108 1.4 x 10-5 1 x 10-5 450 840
Flexible 3.8 x 103 0.140               450 840

1 // M Parallel to magnetic orientation, ”´M Perpendicular to magnetic orientation.

 
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