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

Cruciani, Giuseppe; Dondi, Michele; Ardit, Matteo; Lyubenova, T. Stoyanova; Carda, J.; Matteucci, F.; Costa, Anna Luisa

doi:10.1016/j.materresbull.2009.03.006

Cited by 18 publications

(17 citation statements)

References 32 publications

(60 reference statements)

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“…Chromium speciation in the malayaite and cassiterite structures is less straightforward than in the corundum structure. Authors agree on the presence of Cr 4+ in both structures, mainly substituting for Sn 4+ in octahedral symmetry (Lopez-Navarrete et al 2003;Cruciani et al 2009;Doménech et al 2006;Heyns & Harden 1999). In the case of malayaite, a very small amount of Cr 4+ in tetrahedral symmetry in substitution for Si 4+ was also detected by optical spectroscopy (Cruciani et al 2009;Lopez-Navarrete et al 2003).…”

Section: Tin-based Pink Pigments Casnsio5 and Sno2 Doped With Crmentioning

confidence: 51%

“…Authors agree on the presence of Cr 4+ in both structures, mainly substituting for Sn 4+ in octahedral symmetry (Lopez-Navarrete et al 2003;Cruciani et al 2009;Doménech et al 2006;Heyns & Harden 1999). In the case of malayaite, a very small amount of Cr 4+ in tetrahedral symmetry in substitution for Si 4+ was also detected by optical spectroscopy (Cruciani et al 2009;Lopez-Navarrete et al 2003). Furthermore, the presence of Cr 3+ substituting for Sn 4+ with the formation of oxygen vacancies to accommodate the charge was evidenced by optical spectroscopy and X-ray and neutron diffraction (Cruciani et al 2009).…”

Section: Tin-based Pink Pigments Casnsio5 and Sno2 Doped With Crmentioning

confidence: 63%

“…In the case of malayaite, a very small amount of Cr 4+ in tetrahedral symmetry in substitution for Si 4+ was also detected by optical spectroscopy (Cruciani et al 2009;Lopez-Navarrete et al 2003). Furthermore, the presence of Cr 3+ substituting for Sn 4+ with the formation of oxygen vacancies to accommodate the charge was evidenced by optical spectroscopy and X-ray and neutron diffraction (Cruciani et al 2009). The distribution of chromium between tetrahedral and octahedral sites and its valence variability are certainly the reasons why the color of pigment composed of Cr-doped malayaite is known to be hardly reproducible, and strongly dependent on synthesis conditions such as thermal treatment, used fluxes or precursors (Faurel et al 2003;Harisanov et al 2003;Cordoncillo et al 1998).…”

Section: Tin-based Pink Pigments Casnsio5 and Sno2 Doped With Crmentioning

confidence: 94%

“…The pre-edge area of pigment 10081 is characterized by two features, at different energies from the one of Cr 3+ in octahedral sites in Cr2O3. These two features are still not assigned, because of the complexity of Cr speciation in malayaite, and the poor solubility of Cr in malayaite which gives a bad signal to noise ratio (Lopez-Navarrete et al 2003;Cruciani et al 2009). …”

Section: Chromium Speciationmentioning

confidence: 99%

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Synthesis, properties and uses of chromium-based pigments from the Manufacture de Sèvres

Verger

Dargaud

Chassé

et al. 2018

Journal of Cultural Heritage

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Chromium (Cr) is at the origin of a wide variety of coloration (green, pink and brown) in porcelain glazes from the French Manufacture de Sèvres. This element was introduced for the first time at the factory in 1804, just a few years after its discovery by Louis-Nicolas Vauquelin. Pigments for glazes were developed at the laboratory of the factory, leading to a palette of 76 references. While the synthesis protocol and the nature of the precursors of these pigments are kept in laboratory notebooks, the products have never been characterized. In this work, the pigments composed of Cr were characterized by X-ray diffraction (XRD), UVvisible spectroscopy and X-ray absorption near edge structure spectroscopy (XANES). The analyses reveal the presence of common crystalline phases, and open new perspectives for the synthesis of pigments containing chromium at the Manufacture de Sèvres.

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Section: Tin-based Pink Pigments Casnsio5 and Sno2 Doped With Crmentioning

confidence: 51%

Section: Tin-based Pink Pigments Casnsio5 and Sno2 Doped With Crmentioning

confidence: 63%

Section: Tin-based Pink Pigments Casnsio5 and Sno2 Doped With Crmentioning

confidence: 94%

Section: Chromium Speciationmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis, properties and uses of chromium-based pigments from the Manufacture de Sèvres

Verger

Dargaud

Chassé

et al. 2018

Journal of Cultural Heritage

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show abstract

“…CHEMER-25311;No. of Pages 6 in detail (see Stoyanova Lyubenova et al, 2008, 2009aCruciani et al, 2009). In the course of a systematic spectroscopy study of these pigments that involved optical absorption, vibrational, and emission spectroscopy, we made the puzzling observation that only Cr-free samples always show emissions of minute levels of pollutant REEs.…”

Section: Introductionmentioning

confidence: 99%