Effect of Sintering Temperature on Properties of NiFe2O4-Matrix Inert Anode for Aluminum Electrolysis by Adding Nanopowder

Zhi Gang Zhang; Yi Han Liu; Guang Chun Yao; Di Wu; Jin Jing Du

doi:10.4028/www.scientific.net/AMR.457-458.739

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 457-458Effect of Sintering Temperature on Properties of...

Effect of Sintering Temperature on Properties of NiFe₂O₄-Matrix Inert Anode for Aluminum Electrolysis by Adding Nanopowder

Abstract:

Conventional cold pressing-sintering technique was utilized to fabricate NiFe₂O₄-matrix inert anode for aluminum electrolysis by adding NiFe₂O₄ spinel nanopowder. The effect of sintering temperature on properties of NiFe₂O₄-matrix ceramics was investigated especially. The results indicate that the density increases and the porosity decreases with the sintering temperature increasing, due to the higher diffusion coefficient enhanced by higher temperature. The bending strength and fracture toughness reach maximum values of 55.39MPa and 2.53MPa•m^1/2 respectively, when the sintering temperature is 1400°C.

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Periodical:

Advanced Materials Research (Volumes 457-458)

Pages:

739-743

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.457-458.739

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Online since:

January 2012

Authors:

Zhi Gang Zhang, Yi Han Liu, Guang Chun Yao, Di Wu, Jin Jing Du

Keywords:

Bending Strength, Fracture Toughness, Inert Anode, NiFe₂O₄, Sintering Temperature

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