Metamagnets

[COSMO]

More nerdy news...

Newly identified 'universal' property of metamagnets may lead to everyday uses...

The team of physicists and materials scientists have discovered a universal law governing the magnetic properties of metamagnets – metal alloys that can undergo dramatic increases in magnetization when a small external magnetic field is applied, such as from a permanent magnet or an electromagnet.
The scientists have discovered that the magnetic effect of apparently all metamagnets is that it is non-linear. When these metamagnets are placed in an initial magnetic field and the field is doubled, they more than double in magnetic strength. This is significant because eventually scientists and engineers likely will harness this unique property for a variety of applications, including refrigeration.

"In these new materials, the magnetism can be cycled on and off, enabling heat to be pumped away in a manner similar to what happens in a heat pump today," Shivaram said. "In today's heat pump, we use pressure to cycle the cooling medium from liquid to vapor phase. In the new magnetic refrigerators we will use a magnetic material and cycle the magnetic field instead."

http://phys.org/news/2014-04-newly-universal-property-metamagnets-everyday.html#jCp

Interesting property! I wonder what other applications this could have?   

Cosmo 

[Back]

Intresting C

Any idea of what kind of material that is? Wonder what it would do as a frame for a "Super MEG" Have you checked that latley?

Bless
Back

[PLAYSWITHMACHINES]

Yes, i was thinking the same thing, LOL.
Refrigeration, super powerful motors, lenzless generators, and of course super MEG's not to mention super loudspeakers

[COSMO]

Intresting C

Any idea of what kind of material that is? Wonder what it would do as a frame for a "Super MEG" Have you checked that latley?

Bless
Back

lol  You mind reader you!  I ALWAYS post these new discoveries with "certain things" in mind! 

Here are a few metamagnetic materials. INTERESTING that one of them is GRAPHENE based. 

Nickel(II) and Azide
http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1521-3773(20000103)39:1%3C191::AID-ANIE191%3E3.0.CO;2-F/abstract

Ferrosilicon
http://iopscience.iop.org/0953-8984/11/27/101

bow-tie graphene nanoflakes
http://arxiv-web3.library.cornell.edu/abs/1312.7298

Cosmo

[PLAYSWITHMACHINES]

Cosmo, your tireless research & excellent input never fail to amaze me.
Yet more gold

[Back]

C

you are nuts

Much work to do before we get to that point

Love it
Bless
Back