The corrosion behaviour of ceramic materials in caustic alkaline solutions at high temperature

Tsugio Sato; Shigeki Sato; Akitsugu Okuwaki

doi:10.1016/0010-938X(92)90207-J

The corrosion behaviour of ceramic materials in caustic alkaline solutions at high temperature

Tsugio Sato, Shigeki Sato, Akitsugu Okuwaki

Center for Exploration of New Inorganic Materials

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Weight loss and changes in the crystalline phase, microstructure and fracture strength for MgO, MgAl₂O₄, Al₂O₃, MgO-doped partially stabilized zirconia (Mg-SZ), Y₂O₃-doped tetragonal zirconia polycrystals (Y-TZP), CeO₂-doped tetragonal zirconia polycrystals (Ce-TZP), Si₃N₄ and SiC ceramics were investigated in 5-25 mol kg^-1 H₂O NaOH solutions at 150-300°C. SiC and Ce-TZP exhibited excellent resistance to the corrosion in NaOH solutions. The relative corrosion resistances of those ceramic materials in NaOH solutions are SiC > Ce-TZP > Y-TZP sintered at low temperature > Mg-PSZ > Si₃N₄ > Al₂O₃ > MgAl₂O₄ > MgO.

Original language	English
Pages (from-to)	591-595
Number of pages	5
Journal	Corrosion Science
Volume	33
Issue number	4
DOIs	https://doi.org/10.1016/0010-938X(92)90207-J
Publication status	Published - 1992 Jan 1

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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abstract = "Weight loss and changes in the crystalline phase, microstructure and fracture strength for MgO, MgAl2O4, Al2O3, MgO-doped partially stabilized zirconia (Mg-SZ), Y2O3-doped tetragonal zirconia polycrystals (Y-TZP), CeO2-doped tetragonal zirconia polycrystals (Ce-TZP), Si3N4 and SiC ceramics were investigated in 5-25 mol kg-1 H2O NaOH solutions at 150-300°C. SiC and Ce-TZP exhibited excellent resistance to the corrosion in NaOH solutions. The relative corrosion resistances of those ceramic materials in NaOH solutions are SiC > Ce-TZP > Y-TZP sintered at low temperature > Mg-PSZ > Si3N4 > Al2O3 > MgAl2O4 > MgO.",

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AU - Sato, Tsugio

AU - Sato, Shigeki

AU - Okuwaki, Akitsugu

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N2 - Weight loss and changes in the crystalline phase, microstructure and fracture strength for MgO, MgAl2O4, Al2O3, MgO-doped partially stabilized zirconia (Mg-SZ), Y2O3-doped tetragonal zirconia polycrystals (Y-TZP), CeO2-doped tetragonal zirconia polycrystals (Ce-TZP), Si3N4 and SiC ceramics were investigated in 5-25 mol kg-1 H2O NaOH solutions at 150-300°C. SiC and Ce-TZP exhibited excellent resistance to the corrosion in NaOH solutions. The relative corrosion resistances of those ceramic materials in NaOH solutions are SiC > Ce-TZP > Y-TZP sintered at low temperature > Mg-PSZ > Si3N4 > Al2O3 > MgAl2O4 > MgO.

AB - Weight loss and changes in the crystalline phase, microstructure and fracture strength for MgO, MgAl2O4, Al2O3, MgO-doped partially stabilized zirconia (Mg-SZ), Y2O3-doped tetragonal zirconia polycrystals (Y-TZP), CeO2-doped tetragonal zirconia polycrystals (Ce-TZP), Si3N4 and SiC ceramics were investigated in 5-25 mol kg-1 H2O NaOH solutions at 150-300°C. SiC and Ce-TZP exhibited excellent resistance to the corrosion in NaOH solutions. The relative corrosion resistances of those ceramic materials in NaOH solutions are SiC > Ce-TZP > Y-TZP sintered at low temperature > Mg-PSZ > Si3N4 > Al2O3 > MgAl2O4 > MgO.

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