http://www.cnr.it/ontology/cnr/individuo/prodotto/ID217752
Study of the mechanism of coloration in red ceramic pigments based on perovskite structure (Contributo in atti di convegno)
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- Study of the mechanism of coloration in red ceramic pigments based on perovskite structure (Contributo in atti di convegno) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Alternative label
Baldi G., Cruciani G., Dondi M., Matteucci F. (2004)
Study of the mechanism of coloration in red ceramic pigments based on perovskite structure
in 8th Conference of the European Ceramic Society, Istanbul (Turkey), June 29-July 3, 2003
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- Baldi G., Cruciani G., Dondi M., Matteucci F. (literal)
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- 1 ISTEC - CNR, Via Granarolo 64, 48018 Faenza, Italy
2 Earth Science Department, Corso Ercole I d'Este 32, University of Ferrara, 44100 Ferrara, Italy
3 Colorobbia Italia SpA, Via Pietramarina 123, Sovigliana Vinci, Italy (literal)
- Titolo
- Study of the mechanism of coloration in red ceramic pigments based on perovskite structure (literal)
- Abstract
- The origin of colour in Cr-doped ceramic pigments with AIIIBIIIO3 perovskite structure was investigated by high resolution X-ray diffraction and UV-Vis-NIR spectroscopy. The development of red colour is related to different phenomena: symmetry lowering from hexagonal (Nd) to orthorhombic (Sm-Yb); crystal field strength decrease due to an octahedral tilting distortion with longer (Al,Cr)-O distances in HREE perovskites; shift of a broad absorption band in the bluegreen spectrum depending on the lanthanide ion. (literal)
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