中國有色金屬學(xué)報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 16 No. 5 October 2006 |
LI Zhi-you(李志友), YANG Wen-jie(楊文杰)
（State Key Laboratory of Powder Metallurgy, Central South University,
Changsha 410083, China）
Abstract: The NiFe2O4-10NiO powder for inert anode of aluminium electrolysis was prepared by high temperature solid state reaction. The microstructural evolution from the raw materials NiO and Fe2O3 to the NiFe2O4-10NiO powder was studied by SEM. The results show that the domain structure making up of the agglomerate particles of Fe2O3 remains after high temperature solid state reaction, and the diffusion of Ni2+ into Fe2O3 structure is the control step of the reaction process. A microstructure with compact structure and fine grain inside the particle results from the sintering of NiFe2O4-10NiO powder.
Key words: high temperature solid state reaction; NiFe2O4-NiO; microstructural evolution; inert anode
