Gadolinium Magnet Generator.

[synchro1]

Can you seal it inside aluminum?
Put it in an airtight membrane.
Shouldn't be to hard to make it waterproof.
artv

@Shylo,

A Pelton wheel could generate a good deal of power just from the water flow alone, but sure, it would help to protect the cubes that way.

"Instead of ozone-depleting refrigerants and energy-consuming compressors found in conventional vapor-cycle refrigerators, this new style of refrigerator uses gadolinium metal that heats up when exposed to a magnetic field, then cools down when the magnetic field is removed"

Think about it; There's no cost to a permanent magnet field. At 68º, the Gadolinium is attracted to a permanent magnetic field. The temperature only has to rise a tiny amount for the cube to unfasten and freewheel. All the rotor needs is a correctly spaced cooler Gadolinium cube in front of it to push the demagnetized cube free of the field and voilà! Perpetual motion.

[synchro1]

Here's a guy who has apparently perfected one already:  "Gadolinium Magnetic Generator".

https://www.youtube.com/watch?v=YNvGpUCNfVE

[Pirate88179]

I have a boule of GGG (Gadolinium Gallium Garnet) that was grown at Bell labs. (It is single crystal)  It is about 1.250" dia. x 6" long.  I wonder if this would do anything in this application?  I have never tested its magnetic properties...perhaps I should?


Bill

PS http://www.magnetism-school.org/static/RAMS2/GGG_J_Phys_Conf_Ser_2009_Petrenko.pdf

Here is a paper on GGG's unique magnetic properties.

[synchro1]

I have a boule of GGG (Gadolinium Gallium Garnet) that was grown at Bell labs. (It is single crystal)  It is about 1.250" dia. x 6" long.  I wonder if this would do anything in this application?  I have never tested its magnetic properties...perhaps I should?


Bill

@Pirate88179,

It should warm up enough in a closed fist to pass through the Currie temperature of 68º Fahrenheit and lose it's magnetic attraction.

[Pirate88179]

@Pirate88179,

It should warm up enough in a closed fist to pass through the Currie temperature of 68º Fahrenheit and lose it's magnetic attraction.

That paper I posted a link to list many things I need to have time to read.  It appears that it is not magnetic at room temperature here....at this point. (around 65% F)  I can heat it in my hand, or wherever but, it already does not exhibit magnetic properties at room temp.

Perhaps I should place it in my freezer to see if it becomes magnetic?  I think the paper was talking about much lower temps than that...but am not sure.  This boule looks not much different than my single crystal sapphire one except it has a slight coffee color to it.  My ruby boule is, of course red, which is really just single crystal sapphire with .05% chromium added.  (These were grown for ruby lasers)

I will look into this further but, initial tests with a neo show no magnetics at 65% F.

Bill