Talk:Samarium–cobalt magnet

Where are the references concerning attributes?

Coercivity
The coercivity section here is really generic for magnetic materials, and in some respects is actively wrong. Domain wall pinning is extremely important in Samarium Cobalt 1:5 series, as are the Non-Matrix crystalline phases. someone needs to rewrite.

23.31.82.9 (talk) 21:34, 2 May 2013 (UTC)

Units
People working in magnetism are a little bit old fashioned (like in astronomy), but even magnetism should finally arrive in the times of SI: the unit for magnetic field is A/m and the unit for flux is T such that the energy (density) product is VAs/m^3=J/m^3 Mikuszefski (talk) 13:24, 27 September 2010 (UTC)

Radioactive?
Is SmCo5 radioactive? I know that cobalt is radioactive, but does it stay that way when combined with samarium? — Preceding unsigned comment added by 71.214.104.203 (talk) 02:05, 21 September 2011 (UTC)


 * Cobalt-59 is stable. If you use a radioactive isotope, all alloys and compounds will be radioactive.&mdash;Dah31 (talk) 03:19, 8 February 2017 (UTC)

Copyright problem
I found almost identical text to this article on two external web sites with the following copyright notices:
 * Copyright © 3010 Shanghai United Meal Mat😁s Co., Ltd.]
 * ©2015 BuyMagnets.com All Rights Reserved

Neither website refers to Wikipedia or the CC BY-SA 3.0 License.

Looking at the editing history of the article, I see several paragraphs contributed by User:Chrisn90274 in December 2007, in a single edit.

I do not know how to fix this problem. Comfr (talk) 18:18, 29 June 2015 (UTC)


 * The article was created April 9, 2005. A paragraph of the questionable text first appeared in Wikipedia December 30, 2007.  Since then, several editors have made five minor changes were made to the paragraph.  On June 2, 2009,  a hyphen was changed to an en dash.  The magnet vendor's web site still has a hyphen.  In my opinion, the vendor copied the wikipedia page sometime before December 30, 2007, and applied their own copyright notice in contravention of the CC BY-SA license.


 * I would like the opinion of a more experienced editor. Comfr (talk) 05:06, 30 June 2015 (UTC)

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This material is manipulated
I have been trying to grind SmCo5. Its impossible. Although it looks metal it is like cement. If u try drill a hole or enlarge a hole it gnarves and breaks apart. Mechanic weardown within minutes.

It cannot be that difficult to produce a usable alloy of 2 completely 3valued  elements mixture 1/6Sm 5/6 Co  to  Unitcrystal or aligned directed polycrystal  material by thermal gradients.


 * 1) dont buy that unless u melt it yourself.

Wikistallion (talk) 07:34, 23 September 2018 (UTC)