Pretty much what the title says. I‘m looking for a material that can isolate against warmthbut lets magnetism pass. Since we are using coils that become warm, so they influenced our experiment.in case your wondering what experiment:For school physics we need to do an experiment of our own choice. In my case I‘m researching the effect of magnetic waves on the growth of plants (idea from my teacher).The experiment already finished and it didn‘t go well because of multiple reasons, one being the warmth. So in the report I need to write a recommendation for future experiments like this.
I don't believe they have yet discoverd a material that will stop magnetism,as no one has insulated a magnet.
The Earth has lots of iron. In fact our core is made up almost entirely of iron! However, iron and most other heavy elements in the universe were originally created in stars! When the stars exploded in supernovas those elements were scattered across space.
Iron is an element. It is abundant on our planet. Some metors have iron, but we have plenty of it without them. Some say the earth's core is largely molten iron.
What ive understand is ur using a coil, wound like a solenoid. using a frequency generator, u are trying to see the effect that different frequencies have on the plant which is placed some centimeters away So the additional details u want to include something like to reduce effect of heat on the plant blablabla If thats what u are trying to mean.then I'd suggest that u say Use lower power when generating the frequency.(either using lower voltage or increasing coil turns- higher resistance PV^2/R) when u use lower power there is less heat dissipation now if u still want to persist with the idea of using thermal insulators use thin sheet of aluminum where the inner wall of the aluminum is lagged to prevent heat loss by conduction (solenoidaluminum) use thin sheet of aluminum because it reduces transmission of heat via radiation. and Aluminum allows magnetic field to pass through (it does not create a flux between the coil and aluminium) Hope this will help u ;)
Almost any traditional insulator (non metallic cellular products like wood, styrofoam, rock wool) will reduce heat conduction and pass magnetic fields. Many metals (aluminium, some stainless steel) will reflect radiant energy but will pass magnetic fields if they are not formed in a closed loop (eddy current circuit) in a AC magnetic field in which case they will attenuate the AC magnetic field and if they are not ferromagnetic (in which case they will attenuate DC and AC magnetic fields). Convection losses can be reduced by filling open voids with insulating material to reduce air currents, again most insulators will work for this. Using an efficient coil design could minimize your heat generation, selecting copper wire for DC and low frequency coils, silver (plated at least) or Litz wire for RF coils, suitable core materials, if possible, to direct magnetic flux to desired point possibly keeping coil at a distance (behind the insulation barrier) and finally active cooling of the magnetic components with water or other cooling systems to keep it at ambient temperature.
