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[PaulLowrance]

Metglas makes a lot of cores that are noncrystalline. The Metglas MAGAMP is nanocrystalline and has a *HIGHER* permeability than any Finemet core, which makes Metglas cores softer than Finemet.

Metglas MAGAMP, which is Metglas 2714A square loop, has the highest permeability of all cores, 1 million -->

http://www.metglas.com/faq/?faq_id=35


btw, Finemet was created by Hitachi. Metglas, Inc. is a wholly-owned subsidiary of Hitachi Metals America Ltd.

Anyhow, try both cores. If you need highest permeability and softest magnetic material, then Metglas is the one. If you need higher Bsat, then Finemet is the one. Both are nanocrystalline & amorphous cores. 

[gravityblock]

The Metglas MAGAMP is nanocrystalline and has a *HIGHER* permeability than any Finemet core, which makes Metglas cores softer than Finemet.

Could you provide me with a link that specifically mentions Metglas MAGAMP is a nanocrystalline material because I have not been able to find a reference to this anywhere.  Don't get these two words confused due to spelling similarities, non-crystalline and nano-crystalline.  This is easy to misread.

Thanks,

GB

[PaulLowrance]

Could you provide me with a link that specifically mentions Metglas MAGAMP is a nanocrystalline material because I have not been able to find a reference to this anywhere.

Thanks,

GB

Go to the following page that lists the nanocrystalline & amorphous cores sold by Metglas. The title of the webpage is, "High Performance Amorphous and NanoCrystalline Cores for Electronics"

http://www.metglas.com/products/page5_1_6.htm


As far as I know, nanocrystalline is the only way Metglas can achieve a permeability of 1 million to make it Superparamagnetic material.

Anyhow, try both cores, but on two different setups, both using the Metglas MAGAMP core, I've achieved well over COP 1 in the "tiny orbo replication."

[gravityblock]

Go to the following page that lists the nanocrystalline & amorphous cores sold by Metglas. The title of the webpage is, "High Performance Amorphous and NanoCrystalline Cores for Electronics"

http://www.metglas.com/products/page5_1_6.htm


Nanocrystalline is the only way Metglas can achieve a permeability of 1 million to make it Superparamagnetic material.

Yes, Finemet is listed on that page with a keyword of nanocrystalline.  Metglas is on that page also with no keyword of nanocrystalline.

That's why the title is "High Performance Amorphous and NanoCrystalline", because the page is showing both.


GB

[PaulLowrance]

Yes, Finemet is listed on that page as well with a keyword of nanocrystalline.  Metglas is on that page also with no keyword of nanocrystalline.


GB

LOL, you're ignoring the title of the page that lists nanocrystalline cores. If you don't believe me, then email Metglas. All of those cores are nanocrystalline cores.