Malayaite ceramic pigments: A combined optical spectroscopy and neutron/X-ray diffraction study

@inproceedings{Cruciani2009MalayaiteCP,
  title={Malayaite ceramic pigments: A combined optical spectroscopy and neutron/X-ray diffraction study},
  author={Giuseppe Cruciani and Michele Dondi and Matteo Ardit and Teodora Stoyanova Lyubenova and Juan B. Carda and Francesco Matteucci and Anna Luisa Costa},
  year={2009}
}
Abstract Ceramic pigments based on the Cr-doped malayaite structure were synthesized by solid state reaction and characterized by optical spectroscopy and combined X-ray and neutron powder diffraction in order to elucidate the still unclear chromium substitution mechanisms. The results show that coloration is actually due to simultaneous occurrence of Cr 4+ and Cr 3+ ions in the crystal lattice. Spectroscopy data confirm that Cr 4+ is replacing Sn 4+ in the octahedral site and, in minor amount… CONTINUE READING

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