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2011•Nonferrous MetalsRequires access

Fabrication of NiO/Fe Cermet Inert Anode and Electrolysis Corrosion Behavior

Qingwei Qin

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Abstract

The cermet inert anodes with the compositions of NiO/Fe are prepared by classical powder metallurgical technique,and the corrosion behaviors of NiO based inert anodes in Na3AlF6-Al2O3 melts are investigated.The results show that the wetting characteristic of nickel to NiO cermet is excellent,the high densification of NiO/Fe cermet anode can be easily achieved.The corrosion resistance of the anode is accepted,when CR=2.3,Al2O3 content is close to saturation,the corrosion rate of cermet anodes is the lowest.

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What this paper is about

The cermet inert anodes with the compositions of NiO/Fe are prepared by classical powder metallurgical technique,and the corrosion behaviors of NiO based inert anodes in Na3AlF6-Al2O3 melts are investigated.The results show that the wetting characteristic of nickel to NiO cermet is excellent,the high densification of NiO/Fe cermet anode can be easily achieved.The corrosion resistance of the anode is accepted,when CR=2.3,Al2O3 content is close to saturation,the corrosion rate of cermet anodes is the lowest.

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Available abstract

The cermet inert anodes with the compositions of NiO/Fe are prepared by classical powder metallurgical technique,and the corrosion behaviors of NiO based inert anodes in Na3AlF6-Al2O3 melts are investigated.The results show that the wetting characteristic of nickel to NiO cermet is excellent,the high densification of NiO/Fe cermet anode can be easily achieved.The corrosion resistance of the anode is accepted,when CR=2.3,Al2O3 content is close to saturation,the corrosion rate of cermet anodes is the lowest.

Key concepts: Cermet, Non-blocking I/O, Materials science, Inert, Anode, Corrosion, Metallurgy, Wetting

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