Talk:Barium ferrite

message: 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)
thread_title: Untitled

message: For future reference, here are two papers on the crystal structure of barium ferrite:
* S. Meriani: Polymorphism of barium monoferrite, BaFe2O4
* H. Mitsuda, S. Mori and C. Okazaki: The crystal structure of barium monoferrite, BaFe2O4
Ben (talk) 01:28, 31 May 2008 (UTC)
thread_title:  Structure 

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thread_title:  External links modified 

message: 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)
thread_title:  BaFe<sub>2</sub>O<sub>4</sub> is not what barium ferrite usually refers to. 

message: I think it's usually prepared by a high temperature reaction involving  BaCO3/BaO and Fe2O3. OrganoMetallurgy (talk) 00:01, 13 August 2017 (UTC)
replies: text: Like I added in this edit?  EdChem (talk) 00:13, 13 August 2017 (UTC)
replies: text:  I think so. OrganoMetallurgy (talk) 00:20, 13 August 2017 (UTC)
replies: text: Thanks... does the article statement " Thus, BaFe12O19 is related to Fe12O20, with the empirical formula Fe3O4, i.e. magnetite.[6]" make sense to you, ?  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)
replies: text: , 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)
replies: text:  , 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)
replies: text: Do it. OrganoMetallurgy (talk) 01:22, 13 August 2017 (UTC)

text: Nevermind, I already did it. OrganoMetallurgy (talk) 02:15, 13 August 2017 (UTC)
replies: text: Thanks,, I was looking at the article on the 310 helix.  :)  EdChem (talk) 02:48, 13 August 2017 (UTC)
thread_title:  Preparation