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Alphaform MF

Stan Zurek, Alphaform MF, Encyclopedia-Magnetica.com, {accessed 2020-08-10}

Definition

Alphaform MF (or AlphaForm MF) - a magnetodielectric material manufactured by Fluxtrol Inc.

Alphaform MF applied around a single-turn induction coil alphaform_mf_-_7.jpg Copyrights Fluxtrol Inc.

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Alphaform MF has similar magnetic properties to such materials like Fluxtrol, but it is delivered in a formable state so that it can be modelled into a desired shape. A flux concentrator made from Alphaform LF can be easily retrofitted to an existing induction coils. Manual shaping of such flux concentrator might result with wider mechanical tolerances than it is the case for machined parts.1)

Alphaform MF applied to an internal induction coil Copyrights Fluxtrol Inc.

The product is a soft magnetic composite based on thermal-curing epoxy binder. The resin cures by exposing to temperature up to 190°. After curing and during normal operation the part can be exposed to 225° for prolonged periods, and up to 300° for short intervals.

The “MF” stands for “medium frequency” as compared to frequency ranges of other Fluxtrol materials.

Magnetisation curves for Alphaform LF and Alphaform MF materials2)3)

by S. Zurek, Encyclopedia Magnetica, CC-BY-3.0

Properties

Basic parameters of Alphaform MF 4)
density +/-2% 4.0 g/cm³ = 4000 kg/m³
initial permeability 9.8
maximum permeability 10
saturation flux density 0.9 T
operating frequency range 10-1000 kHz
major frequency range 20-450 kHz
temperature resistance 225°C (long term), 300°C (short term)
thermal conductivity 0.02 W/(cm·C) = 2 W/(m·K)
resistivity >15 kΩ·cm = 150 Ω·m

Data sheet

Data sheet for Alphaform MF

Copyrights © Fluxtrol, Inc.

See also

References

alphaform_mf.txt · Last modified: 2020/07/18 23:42 by stan_zurek

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