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Carbonate Associated with Hydroxide Sol‐Gel Processing of Yttria:. An Infrared Spectroscopic Study
Author(s) -
SEAVERSON L.M.,
LUO S.Q.,
CHIEN P.L.,
McCLELLAND J.F.
Publication year - 1986
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.1151-2916.1986.tb04773.x
Subject(s) - calcination , carbonate , hydroxide , yttria stabilized zirconia , yttrium , materials science , sintering , inorganic chemistry , sol gel , fourier transform infrared spectroscopy , cadmium oxide , cubic zirconia , chemical engineering , nuclear chemistry , oxide , mineralogy , chemistry , metallurgy , catalysis , ceramic , organic chemistry , nanotechnology , cadmium , engineering
Yttrium hydroxide gel was dried by five techniques to study their influences on the sintering behavior of yttria. Dried precursors, calcined and sintered oxides, and the initial gel were examined via Fourier transform infrared photoacoustic and/or attenuated total reflection spectroscopies. Carbonate was found to be in unidentate coordination to surface yttrium on both the dried hydroxide precursor and calcined oxide particles. An inverse correlation was found between the normalized surface carbonate concentration (carbonate concentration (wt%)/surface area (m 2 /g) of precursors and calcined oxides and the density of their corresponding sintered bodies. Carbonate affects sintered density during the calcination and sintering steps.