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Author Topic: Pyrolytic graphite shielding  (Read 19825 times)

tropes

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Re: Pyrolytic graphite shielding
« Reply #15 on: February 01, 2009, 08:51:52 PM »
But really, think about it... Either you want the flux to pass through the
"shield" because the flux permeability of the "shield" is much higher than
the surrounding materials, in which case the magnets would become
attracted to the "shield" and would be difficult to remove from the shield,
or you want the flux to be deflected from the shield, never passing through
it and always going around it, which would also "deflect" the flux from
"colliding" with the opposing flux from the opposing magnet, in which
case the magnets would never be attracted to the "shield" but would
"feel" a decreased opposed flux from eachother when the shield
is in place. It would seem that removing the magnets from their "shielded"
spot would increase flux opposition a bit.

right? ;)

You are right. So if the two opposing magnets were attracted to each other and a "shield" of antiferromagnetic material (pyrolytic graphite, bismuth) came between them, they would be repelled.
Tropes

radmag

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Re: Pyrolytic graphite shielding
« Reply #16 on: February 02, 2009, 04:28:21 AM »
Did I miss out anything?I am just asking since the beginning of the topic.Is pyrolytic graphite strong enough to repel two strong neo magnets when it is between them?

0c

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Re: Pyrolytic graphite shielding
« Reply #17 on: February 02, 2009, 05:24:05 AM »
Did I miss out anything?I am just asking since the beginning of the topic.Is pyrolytic graphite strong enough to repel two strong neo magnets when it is between them?

It might if it's thick enough, say 2 feet thick.

radmag

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Re: Pyrolytic graphite shielding
« Reply #18 on: February 02, 2009, 05:31:29 AM »
It might if it's thick enough, say 2 feet thick.

 ;D

PYRODIN123321

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Re: Pyrolytic graphite shielding
« Reply #19 on: February 02, 2009, 11:29:22 PM »
you have to make the magnets almost weightless with magnets above to actually levitate....I got some sitting on my desk here cool but very weak ....

tropes

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Re: Pyrolytic graphite shielding
« Reply #20 on: February 02, 2009, 11:54:21 PM »
you have to make the magnets almost weightless with magnets above to actually levitate....I got some sitting on my desk here cool but very weak ....
@Pyro
The magnets don't have to levitate. The attraction needs to be blocked at the point where they are nearest to each other similar to the coil between the two opposing magnets in the Sotropa Motor-  http://ca.youtube.com/watch?v=oHvxB8sFyFo
 The attraction would provide 180 degrees of rotation.
Tropes

brotherjames

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Re: Pyrolytic graphite shielding
« Reply #21 on: March 13, 2009, 05:38:39 PM »
Hello,

I tryed bismuth, it won't create the magnetic valve effect we are looking for.
I then tryed Pyro Graphite from AUS at about $20.00 for a 25mmx25mm sq at 6mm thick. I bought 4 squares and I havn't seen any results no matter how I stack'em.

I do notice a slight phanomanon when little pieces of the graphite are slivered off and placed on the neos, but I don't see any reflecting of magnetic lines of force.

If someone has found a diamagnetic material that can be used to shut off the magnetic force, then let me know also.

brother james

argona369

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Re: Pyrolytic graphite shielding
« Reply #22 on: March 13, 2009, 06:25:04 PM »
>If someone has found a diamagnetic material that can be used to shut off the magnetic force,
> then let me know also.


Hmmm,
Maybe have a look at this new class of composite materials here,
(magnetic film layer over topological insulator)

Magnetic monopole
http://www.overunity.com/index.php?topic=6987

Cliff,

The_Jerk

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Re: Pyrolytic graphite shielding
« Reply #23 on: March 17, 2009, 03:49:09 AM »
Just use some bismuth as an accelerated force coupled with some neodymium magnets.  We've all seen the awesome levitation effects that bismuth produces, but somehow the fixation ends there.  Obviously bismuth repels both the north and south poles of any magnet, I can't see how people never thought to use it for propulsion.  I know you can get bismuth powder from smallparts.com, now this would be a perfect catalyst to mix in with magnaview fluid to create a repulsion/attraction effect needed for a rotating electromagnetic highly viscous medium needed for space craft propulsion.  Of course you would still need to power the rotating magnetic field somehow in order to begin pulling the fluid to high enough rpms to excite the aether into molecular repulsion.