The magnetic permeability needs to be at least 12,000.Can somebody help me find a powder material with a magnetic shileding affect?
Hi.
I understand what you are after but obviously you havn't mentioned what it is for, which would obviously help as you mention a powder coat... but dry powder or heated plastic powder which could form a protective hard layer?
Any conductive metal powder such as aliminum powder will work as an EMF shield but there are companies out there now who do a plastic with conductive alloys within it which will do the job. I believe this then needs to be heat treated, which forms a plastic coating which is hard.
I found a paper on it that uses alloy.. this is what it reads...
Soft magnetic powder comprising flat soft magnetic particles of an alloy having a composition defined and encompassed by polygon ABCDE in a Fe-Si-Cr ternary composition diagram of FIG. 1 or polygon JKLMN in a Fe-Si-Al ternary composition diagram of FIG. 4 is suitable for use in magnetic shields. The flat soft magnetic particles are prepared by furnishing alloy particles having a predetermined composition, flattening them, and heat treating the flat particles to develop a peak corresponding to plane index (002) in an X-ray diffraction diagram thereof.
From http://www.freepatentsonline.com/5207841鈥?/a>
but I have listed a few companies that might be able to help
http://magnetic-shield.com/?gclid=CNSCwq鈥?/a>
I phones these for you, and they said they don't have a powder coat but might be able to help if you call them with another way..
http://www.priorartdatabase.com/IPCOM/00鈥?/a>
Think these use ferrous bondings..
http://www.hobbyengineering.com/H1293.ht鈥?/a>
These you can buy aluminum powder for less the $10
Anyway, good luck, if I can help more, let me know.Can somebody help me find a powder material with a magnetic shileding affect?
The material is called ferrite. It is available here:-
http://www.aaamagnet.net/Magnetic_Powder鈥?/a>
You can get magnetic permeabilities well over 12,000 if you want.
You must be thinking about mu-metal.
The link connects to other high 渭 materials.
I know what ur talking about and i cant think of the name of it !!
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