Corrosion resistance characterization of porous alumina membrane supports

Yingchao Dong*, Lin Bin, Jian Er Zhou, Xiaozhen Zhang, Yihan Ling, Xingqin Liu, Guangyao Meng, Stuart Hampshire

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

Tubular porous alumina ceramic membrane supports were fabricated by an extrusion-drying-sintering process and then characterized in detail in terms of corrosion resistance in both H2SO4 and NaOH aqueous solutions. Variations in the properties of the alumina supports such as mass loss percent, mechanical strength, open porosity and pore size distribution were studied before and after corrosion under different conditions. In addition, the microstructures were analyzed using scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction before and after corrosion. The fabricated porous alumina supports offer possibilities for some potential applications as micro-filtration or ultra-filtration membrane supports, as well as in the pre-treatment of strongly acidic industrial waste-liquids.

Original languageEnglish (US)
Pages (from-to)409-418
Number of pages10
JournalMaterials Characterization
Volume62
Issue number4
DOIs
StatePublished - Apr 1 2011

Keywords

  • Acidic corrosion resistance
  • AlO
  • Alkaline corrosion resistance
  • Ceramic membrane supports
  • Chemical properties

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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