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Color and Vanadium Valency in V‐Doped ZrO 2
Author(s) -
Ren Feng,
Ishida Shingo,
Takeuchi Nobuyuki
Publication year - 1993
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.1151-2916.1993.tb06654.x
Subject(s) - vanadium , zirconium , vanadium oxide , doping , materials science , inorganic chemistry , valency , mineralogy , chemistry , linguistics , philosophy , optoelectronics
The distribution and chemical states of vanadium in V‐doped ZrO 2 were studied to clarify the origin of the color of vanadium‐zirconium yellow pigment in comparison with vanadium‐tin yellow pigment. ESCA data and measurements of lattice constants of V‐doped ZrO 2 revealed that vanadium was dissolved mainly as V 4+ substituting for Zr in ZrO 2 lattice, and its solubility limit was 0.5 wt% as V 2 O 5 . It was found that the yellow color of vanadium‐zirconium yellow was produced predominantly by the dissolved vanadium and that the contribution of vanadium oxide on ZrO 2 grains to the yellow color was about 1/30 of that of the dissolved vanadium when compared on the basis of equimolar quantity of vanadium. Most of the undissolved vanadium oxide was in an amorphous or a poorly crystallized state.