Talk:Barium ferrite

Latest comment: 7 years ago by DrStrauss in topic Requested move 13 August 2017

Untitled

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I am removing the redirect from barium ferrate, as this is clearly a different compound and gets no mention in this article. --Pyrochem (talk) 07:13, 20 February 2008 (UTC)Reply

Structure

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For future reference, here are two papers on the crystal structure of barium ferrite:

Ben (talk) 01:28, 31 May 2008 (UTC)Reply

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BaFe2O4 is not what barium ferrite usually refers to.

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Barium ferrite usually refers to barium hexaferrite, formula BaFe12O19 also written as BaO(Fe2O3)6, which is commonly used for its magnetic properties, rather then barium monoferrite, formula BaFe2O4, which as far as I can tell, seems primarily to be used as a precursor to barium hexaferrite. I'll be editing the article to reflect this. OrganoMetallurgy (talk) 15:46, 12 August 2017 (UTC)Reply

Preparation

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@EdChem: I think it's usually prepared by a high temperature reaction involving BaCO3/BaO and Fe2O3. OrganoMetallurgy (talk) 00:01, 13 August 2017 (UTC)Reply

@OrganoMetallurgy: Like I added in this edit? EdChem (talk) 00:13, 13 August 2017 (UTC)Reply
I think so. OrganoMetallurgy (talk) 00:20, 13 August 2017 (UTC)Reply
Thanks... does the article statement " Thus, BaFe12O19 is related to Fe12O20, with the empirical formula Fe3O4, i.e. magnetite.[6]" make sense to you, OrganoMetallurgy? The empirical formula for Fe12O20 is Fe3O5, so the connection to magnetite is not clear to me. Magnetite is a 1:2 mix of iron(II) and iron(III) yet ferrites are iron(III) only. The ref is an entire text book, so looking up the source is unhelpful. Thoughts? EdChem (talk) 00:31, 13 August 2017 (UTC)Reply
EdChem, it doesn't make sense. I suspect it is the result of a combination of errors involving formulas and confusion between the different types of ferrites (some of which are related to magnetite). Also the term ferrite doesn't exclude mixed valence iron compounds. OrganoMetallurgy (talk) 01:12, 13 August 2017 (UTC)Reply
(edit conflict) OrganoMetallurgy, thanks. I mis-spoke, I was thinking about this ferrite, BaFe12O19 = BaO.6Fe2O3 as iron(III) only. I favour removing the magnetite sentence entirely, what do you think? EdChem (talk) 01:18, 13 August 2017 (UTC)Reply
Do it. OrganoMetallurgy (talk) 01:22, 13 August 2017 (UTC)Reply
Nevermind, I already did it. OrganoMetallurgy (talk) 02:15, 13 August 2017 (UTC)Reply
Thanks,OrganoMetallurgy, I was looking at the article on the 310 helix.  :) EdChem (talk) 02:48, 13 August 2017 (UTC)Reply

Requested move 13 August 2017

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The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review. No further edits should be made to this section.

The result of the move request was: not moved DrStrauss talk 20:54, 23 August 2017 (UTC)Reply



Barium ferriteBarium hexaferrite – Barium hexaferrite seems to be the main focus of the article and is less ambiguous. OrganoMetallurgy (talk) 16:31, 13 August 2017 (UTC)Reply

Oppose. BaFe6O19 is called barium ferrite, regardless of whether some happen to find it an ambiguous or inconvenient name. We just dont go around inventing names, that would be OR, not to mention confusing. If several barium ferrites are known, then we either pack them into this article or rediscuss. --Smokefoot (talk) 17:02, 13 August 2017 (UTC)Reply
Comment Smokefoot, Barium hexaferrite isn't a name I invented, it's a name for BaFe12O19 that is used in literature. OrganoMetallurgy (talk) 17:30, 13 August 2017 (UTC)Reply
Thanks for the explanation. But the hexaferrite term is rarely used. About 1:10 by the Google search test. --Smokefoot (talk) 19:06, 13 August 2017 (UTC)Reply
No So is this article about BaFe6O19 (too much oxygen in this formula) or BaFe12O19? It seems to be the latter, and I will assume that for adding ids. Possibly barium hexaferrite should be a redirect to here. It's also called "Ferroxdure"[1]. There is a wikidata item with this hexaferrite name.[2] but maybe that should be merged with the barium ferrite data[3] linking this article. Google thinks that "Barium ferrite" is the most common, followed by "barium hexaferrite" followed by "Ferroxdure", with "barium hexaferrate" in last position. Note there is also Barium ferrate which is BaFeO4 and is clearly different. Graeme Bartlett (talk) 09:16, 17 August 2017 (UTC)Reply
Comment There is also the antiferromagnetic barium monoferrite BaFe2O4 that sometimes occasionally is confused with barium hexaferrite. Which I suspect is related to the fact that the formula on this page was incorrectly listed as being BaFe2O4 for the last ten years. OrganoMetallurgy (talk) 13:41, 17 August 2017 (UTC)Reply

The above discussion is preserved as an archive of a requested move. Please do not modify it. Subsequent comments should be made in a new section on this talk page or in a move review. No further edits should be made to this section.