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http://dx.doi.org/10.6111/JKCGCT.2010.20.4.159

The ionization energy and lattice parameters of Co- and Ce-doped cubic zirconia (YSZ) single crystal  

Seok, Jeong-Won (Department of Gemological Engineering, dongshin university)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.20, no.4, 2010 , pp. 159-163 More about this Journal
Abstract
Co-(0.5 mol%) and Ce-(0~0.3 mol%) doped cubic zirconia ($ZrO_2:Y_2O_3$=64:36 mol%) single crystals grown by a skull melting method were heat-treated in $N_2$ at $1200^{\circ}C$ for 3 hrs. The brown-colored as-grown single crystals were changed into either green or blue color after the heat treatment. Before and after the heat treatment, the YSZ (yttriastabilized zirconia) single crystals were cut for wafer form (${\phi}7mm{\times}t2mm$) and round brilliant cut ($\phi$ 12 mm). The optical and structural properties were examined by UV-VIS spectrophotometer and X-ray diffraction. Absorption by $Ce^{3+}(^2F_{5/2},\;_{7/2}(4f){\rightarrow}^2T_g(5d^1)),\;Co^{2+}(^4A_2(^4F){\rightarrow}^4T_1(^4F)$ or $^4T_1(^4P))$ and $Co^{3+}$, change of ionization energy and lattice parameter were confirmed.
Keywords
YSZ; $Ce^{3+}$; $Co^{2+}$; $Co^{3+}$; Ionization energy; Lattice parameter;
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Times Cited By KSCI : 2  (Citation Analysis)
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