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Aqueous Degradation and Chemical Passivation of Yttria‐Tetragonally‐Stabilized Zirconia at 25°C
Author(s) -
Kimel R. Allen,
Adair James H.
Publication year - 2002
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2002.tb00288.x
Subject(s) - aqueous solution , cubic zirconia , passivation , yttria stabilized zirconia , zeta potential , degradation (telecommunications) , chemical engineering , materials science , suspension (topology) , dispersion (optics) , mineralogy , inorganic chemistry , chemistry , metallurgy , composite material , nanotechnology , nanoparticle , ceramic , telecommunications , mathematics , layer (electronics) , homotopy , computer science , pure mathematics , engineering , physics , optics
The objective of this study was to establish the mechanism(s) controlling degradation of yttria‐tetragonally‐stabilized zirconia (Y‐TZP) powder in aqueous suspensions and determine the significance of this degradation to the aqueous physical chemistry of Y‐TZP. Experiments were performed on commercially available Y‐TZP powder placed in aqueous suspensions at 25°C. Experimental investigations included analysis of the aqueous chemistry of Y‐TZP in water via ICP‐MS, determination of the surface and bulk structure of the powder via XRD and solid‐state NMR, and observation of changes in surface charges via zeta potential determinations. The goal of this study was to control the surface chemistry of Y‐TZP in aqueous suspension to promote dispersion and permit aqueous processing of Y‐TZP powders.