Chan, J. C. ; Alcock, C. B. ; Jacob, K. T. (1973) Electrochemical measurement of the oxygen potential of the system iron-alumina-hercynite in the temperature range 750 to 1600°C Canadian Metallurgical Quarterly, 12 (4). pp. 439-443. ISSN 0008-4433
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Official URL: http://www.ingentaconnect.com/content/maney/cmq/19...
Related URL: http://dx.doi.org/10.1179/000844373795148520
Abstract
Solid oxide galvanic cells using CaO-ZrO2 and CaO-ZrO2 in combination with YO1.5-ThO2 as electrolyte were used to determine the free energy of formation of hercynite from 750–1600°C. The formation reaction is 2Fe(s,1) + O2(g) + Al2O3(α) = 2FeO.Al2O3(s)for which ΔG° = − 139,790 + 32.83T (±300) cals. (750–1536°C) ΔG° = − 146,390 + 36.48T (±300) cals. (1536–1700°C)These measurements can be used to resolve the discrepancies that exist in published thermochemical data, and provide an accurate oxygen potential standard for calibrating and assessing the performance of oxygen probes under steelmaking conditions.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Canadian Institute of Mining, Metallurgy and Petroleum. |
| ID Code: | 94750 |
| Deposited On: | 17 Oct 2012 11:26 |
| Last Modified: | 17 Oct 2012 11:26 |
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