Studies in the system Mn-O--The Mn 2 O 3 -Mn 3 O 4 and Mn 3 O 4 -MnO equilibria

Clicks: 2
ID: 293117
1960
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Emerging

Ranked #760 of 8,486 articles by views in american journal of science

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 8,486 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
As a first step in an investigation of phase relations in the system Mn-O, the equilibria 6Mn 2 O 3 = 4Mn 3 O 4 + O 2 and 2Mn 3 O 4 = 6MnO + O 2 have been studied in the temperature intervals 845 to 1029 degrees C. and 1248 to 1562 degrees C., respectively, and at O 2 partial pressures ranging from 0.21 to 1 atm. and from 10 (super -3.66) to 0.21 atm. respectively. The conditions for coexistence of 2 crystalline phases in stable univariant equilibria are expressed as follows: Mn 2 O 3 , Mn 3 O 4 : log p (sub O 2 = 8.05 - 10100 . 1/T; Mn 3 O 4 , MnO : log p (sub O 2 = 13.31 - 26000 . 1/T. Exploratory runs in the solidus temperature region for the composition range between MnO and Mn 3 O 4 indicate the presence of a eutectic at approximately 1540 degrees C. An explanation is offered for the poor agreement among previously published data on these equilibria.
Reference Key
openalex_W2155210402 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors W. C. Hahn, Arnulf Muan
Journal american journal of science
Year 1960
DOI
10.2475/ajs.258.1.66
URL
https://doi.org/10.2475/ajs.258.1.66
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.