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- Itoh Satoshi
- Department of Metallurgy, Faculty of Engineering, Tohoku University
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- Azakami Takeshi
- Department of Metallurgy, Faculty of Engineering, Tohoku University
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説明
The Zn–Fe–O system can be divided into three regions from the thermodynamic and metallurgical viewpoints: (i) Fe–Zn–ZnO–FeO system, (ii) FeO–ZnO–ZnFe2O4–Fe3O4 system and (iii) Fe3O4–ZnFe2O4–Fe2O3 system. Phase relations in each system have been studied at 1200 K by equilibrating synthetic samples in evacuated sealed quartz tubes. The results indicate that the phase relations at 1200 K are almost the same as that at 1100 K, while the mutual solid solubilities at 1200 K between ZnO and FeO are slightly larger than those at 1100 K. On the basis of the results and our previous EMF data using a stabilized zirconium oxide solid electrolyte, the equilibrium partial pressures of oxygen, −logpO<SUB>2</SUB>(=−log(PO<SUB>2</SUB>⁄P\ominus)), at 1200 K were thus estimated as follows: 20–16 for region (i), 14–12 for region (ii) and 6–3 for region (iii), respectively.<BR>The activities of the components in Fe–Zn, FeO–ZnO and Fe3O4–ZnFe2O4 systems were then obtained by applying the Gibbs-Duhem relation in each region.
収録刊行物
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- Materials Transactions, JIM
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Materials Transactions, JIM 36 (8), 1074-1080, 1995
社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282679223845888
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- NII論文ID
- 130003556554
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- COI
- 1:CAS:528:DyaK2MXos1Slsb0%3D
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- ISSN
- 2432471X
- 09161821
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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