The Gabriel Device, possible COP=8

[matthewklinko]

Found a unlimited source of permalloy for virtually free.... Harddrives the brackets are permalloy, people usually just toss those or let you take the whole machine for nothing which is a good source for materials, I have about 10lbs of the stuff now

wow good find Mav! and you get some powerful magnets aswell.


How do you plan on warping the brackets around the the toroid? Make like a box?

[Mavendex]

wow good find Mav! and you get some powerful magnets aswell.


How do you plan on warping the brackets around the the toroid? Make like a box?

melt them down in a kiln and then cast them in a toroid is the plan although I don't think they are necessary just a project I would like to try

[Cheap4All]

melt them down in a kiln and then cast them in a toroid...

Sorry to kill your idea Mav, but its not that simple with Permalloy  .  Making permalloy involves a very special process to achieve  the Permalloy effect. Just melting them down and casting would absolutely ruin them, no longer would they be permalloy, nor would you be able to use them for anything magnetic. Probably only good as paperweights.
Better idea would be to cut them and maybe have a slightly rectangular toroid, or to angle cut them so as  to form a circle and bind the cut angular bits together somehow.

[matthewklinko]

melt them down in a kiln and then cast them in a toroid is the plan although I don't think they are necessary just a project I would like to try

Ok sounds good, any chance of getting a update how you are going with your project? investors?


I havent had much time lately to work on my replication but I hope to start back up again in a week or so.


goodluck with it all

[Mavendex]

Sorry to kill your idea Mav, but its not that simple with Permalloy  .  Making permalloy involves a very special process to achieve  the Permalloy effect. Just melting them down and casting would absolutely ruin them, no longer would they be permalloy, nor would you be able to use them for anything magnetic. Probably only good as paperweights.
Better idea would be to cut them and maybe have a slightly rectangular toroid, or to angle cut them so as  to form a circle and bind the cut angular bits together somehow.

Permalloy is a nickel-iron magnetic alloy, with about 20% iron and 80% nickel content. It is notable for its very high magnetic permeability, which makes it useful as a magnetic core material in electrical and electronic equipment, and also in magnetic shielding to block magnetic fields. Commercial permalloy alloys typically have relative permeability of around 100,000, compared to several thousand for ordinary steel.^[1]
In addition to high permeability, its other magnetic properties are low coercivity, near zero magnetostriction, and significant anisotropic magnetoresistance. The low magnetostriction is critical for industrial applications, allowing it to be used in thin films where variable stresses would otherwise cause a ruinously large variation in magnetic properties. Permalloy's electrical resistivity generally varies within the range of 5% depending on the strength and the direction of an applied magnetic field. Permalloys typically have the face centered cubic crystal structure with a lattice constant of approximately 0.355 nm in the vicinity of a nickel concentration of 80%. Permalloy is used in transformer laminations and magnetic recording heads.


http://en.wikipedia.org/wiki/Permalloy
so ya you can melt it down and cast it, its just a alloy of Iron and nickel if I want to align the domains I have magnets I can run around it while its cooling its not that difficult.
And If I wanted to get real crazy with it we can dope it with liquid nitrogen and crystallize it