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Nickel Ferrite - Does it have potential as a sidewall material?

Conference Paper


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Abstract


  • A great deal of work has been done on evaluation of nickel ferrite as a material for fabrication

    of inert anodes, usually as a component in a metal-ceramic composite. Its relatively good

    resistance to corrosion by cryolite rich baths has led to the suggestion that it might be feasible

    to use nickel ferrite as a sidewall material. This is a very attractive option, as elimination of

    the frozen ledge has significant benefits in terms of energy savings and increased

    productivity. However, very little work has been done to assess its suitability as a refractory

    material

    Benchmark testing of the properties of nickel ferrite as a refractory have been conducted as

    part of a project funded by the CSIRO Flagship Cluster “Breakthrough Technology for

    Primary Aluminium”. Results of initial work confirm that the nickel ferrite spinel does have a

    relatively high resistance to attack by cryolite based baths, but the corrosion mechanism is

    complex, and is not yet understood. However, design of a corrosion resistant grain boundary

    phase may be the key to development of a successful spinel based refractory.

Publication Date


  • 2011

Citation


  • Nightingale, S. A., Longbottom, R. J. & Monaghan, B. J. (2011). Nickel Ferrite - Does it have potential as a sidewall material?. Proceedings of the 10th Australasian Aluminium Smelting Technology Conference. (pp. 1-11). Sydney: UNSW.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2668&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1624

Start Page


  • 1

End Page


  • 11

Abstract


  • A great deal of work has been done on evaluation of nickel ferrite as a material for fabrication

    of inert anodes, usually as a component in a metal-ceramic composite. Its relatively good

    resistance to corrosion by cryolite rich baths has led to the suggestion that it might be feasible

    to use nickel ferrite as a sidewall material. This is a very attractive option, as elimination of

    the frozen ledge has significant benefits in terms of energy savings and increased

    productivity. However, very little work has been done to assess its suitability as a refractory

    material

    Benchmark testing of the properties of nickel ferrite as a refractory have been conducted as

    part of a project funded by the CSIRO Flagship Cluster “Breakthrough Technology for

    Primary Aluminium”. Results of initial work confirm that the nickel ferrite spinel does have a

    relatively high resistance to attack by cryolite based baths, but the corrosion mechanism is

    complex, and is not yet understood. However, design of a corrosion resistant grain boundary

    phase may be the key to development of a successful spinel based refractory.

Publication Date


  • 2011

Citation


  • Nightingale, S. A., Longbottom, R. J. & Monaghan, B. J. (2011). Nickel Ferrite - Does it have potential as a sidewall material?. Proceedings of the 10th Australasian Aluminium Smelting Technology Conference. (pp. 1-11). Sydney: UNSW.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2668&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1624

Start Page


  • 1

End Page


  • 11