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What materials allow a magnetic flux at very high (1000 C) temps ?

What materials allow a magnetic flux at very high (1000 C) temps ?

What materials allow a magnetic flux at very high (1000 C) temps ?

(OP)
What materials allow a flux to flow at temperatures in the region of 1000C ?

Which of these materials would survive in an air atmosphere at that temperature ?

Thanks

RE: What materials allow a magnetic flux at very high (1000 C) temps ?

None.

You'll need to locate a magnet external to that environment.

Did you have an application in mind or is this just a thought experiment?

RE: What materials allow a magnetic flux at very high (1000 C) temps ?

(OP)
I know about needing to locate an external magnet.

Its an application.  I want to actuate a valve inside a high temperature environment.  

RE: What materials allow a magnetic flux at very high (1000 C) temps ?

(OP)
Anyone ?

Does steel allow a magnetic flux above the Currie temp ?

Thanks

RE: What materials allow a magnetic flux at very high (1000 C) temps ?

You already got your answer:it's no.
Above the Curie temperature ferromagnetic materials become simply paramagnetic, not very different from vacuum. By the way steel  would be unable to do almost anything at that temperature.

prex
http://www.xcalcs.com : Online engineering calculations
http://www.megamag.it : Magnetic brakes for fun rides
http://www.levitans.com : Air bearing pads

RE: What materials allow a magnetic flux at very high (1000 C) temps ?

(OP)
Sorry, I missed the "none" part of your reply.

Do any ceramic materials possess magnetic properties at elevated temperatures ?

Thanks

RE: What materials allow a magnetic flux at very high (1000 C) temps ?

(OP)
What is the highest temperature that steel is permeable and what kind of steel ?

Thanks

RE: What materials allow a magnetic flux at very high (1000 C) temps ?

Look up a list of curie temperatures.
I don't recall anything above about 450C.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

RE: What materials allow a magnetic flux at very high (1000 C) temps ?

But, isn't the OP essentially asking whether something like steel can remain paramagnetic, and hence, still be usuable as a solenoid plunger, for example?

TTFN

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