WIT Press

Correlation Between Microstructure Changes By Water Molecule Corrosion And Strength Characteristics Of ZrO Particle Dispersed AlO

Price

Free (open access)

Volume

19

Pages

10

Published

1998

Size

1,484 kb

Paper DOI

10.2495/FR980591

Copyright

WIT Press

Author(s)

N. Hisamori & Y. Kimura

Abstract

Correlation between microstructure changes by water molecule corrosion and strength characteristics of ZrO% particle dispersed N. Hisamori* , Y. Kimura^ "Graduate School, Kogakuin University, 1-24-2 Nishishinjuku, Shinjuku-ku, Tokyo 160, Japan Email: bd96002@hmail m. kogakuin. ac.jp * Department of Environmental Chancel Engineering, Kogakuin University, 1-24-2 Nishishinjuku, Shinjuki4-ku, Tokyo 160, Japan Email: kimura@cc. kogakuin. ac.jp Abstract The influence of zirconia particle addition upon improvement in mechanical properties of alumina and its degradation by deionized water corrosion was investigated, Submicrometer polycnstalline a -ALO] powder and the mixed powders of Al2O3-3mol% Y^Os were used as starting material. Sintered ALO] bodies with 5. 15 and 30wt.% 3 mol% YzOg doped tetragonal ZrO: were made pressureless sintering method at 1550. 600 and 1650 °C. respectively. These ceramic composites were corroded in room temperature deionized water at 30 T. The effects of microstr

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