| Autor: |
Hongyan Yan, Jinglong Liang, Yanke Xu, Chao Luo, Hui Li |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
The Minerals, Metals & Materials Series ISBN: 9783030652609 |
| DOI: |
10.1007/978-3-030-65261-6_38 |
| Popis: |
The Fe-FeAl2O4 composite material was prepared by molten salt electro-deoxidation method. It used mixed Fe2O3 and Al2O3 powder for tableting, and served as cathode electrolysis. The standard Gibbs free energy change (ΔGΘ) and theoretical decomposition voltage (EΘ) of each reactant in the system were calculated by FactSage. The results showed that the EΘ was in the range of −1.01 V to −2.31 V at 800 ℃, Fe2O3 reduced to FeO, formed FeAl2O4 spinel phase with Al2O3, and the remaining FeO continued to reduce to metallic phase Fe. By using FactSage to analyze the phase diagram of FeO-Al2O3 binary system, it can be determined that the molar ratio of Fe2O3 and Al2O3 was 2:1 and the best reaction temperature range for preparing Fe-FeAl2O4 composite material was 800–900 ℃. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
