Lilac ceramic pigments based on Ba0.5Sr0.5Zn2−xNixSi2O7 solid solutions
Lilac pigments were prepared within the solid solution series Ba0.5Sr0.5Zn2−xNixSi2O7 with 0.1≤x≤0.5 from the corresponding oxides and carbonates via solid-state reactions. Depending on the composition, the solid solutions exhibit the crystal structure of the low-temperature and the high-temperature...
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Published in | Ceramics international Vol. 42; no. 11; pp. 13035 - 13040 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
15.08.2016
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Subjects | |
Online Access | Get full text |
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Summary: | Lilac pigments were prepared within the solid solution series Ba0.5Sr0.5Zn2−xNixSi2O7 with 0.1≤x≤0.5 from the corresponding oxides and carbonates via solid-state reactions. Depending on the composition, the solid solutions exhibit the crystal structure of the low-temperature and the high-temperature phases of BaZn2Si2O7. This structural change leads to a change in the optical spectra, i.e. the coloration of the ceramic powders. The different colors are attributed to the variation of the coordination sites of Ni2+. In the case of samples with the structure of HT-BaZn2Si2O7, Ni2+-ions are incorporated into tetrahedrally coordinated sites. Spectra of samples with the crystal structure of LT-BaZn2Si2O7 are attributed to a mixture of Ni2+ in tetrahedral coordination but also to distorted sites with higher coordination numbers. |
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ISSN: | 0272-8842 1873-3956 |
DOI: | 10.1016/j.ceramint.2016.05.082 |