Results
author = "Cruciani G."
Zirconium titanate ceramic pigments: Crystal structure, optical spectroscopy and technological properties
Description :
Srilankite-type zirconium titanate, a promising structure for ceramic pigments, was synthesized at 1400 degrees C following three main doping strategies: (a) ZrTi(1-x)A(x)O(4), (b) ZrTi(1-x-y)A(x)B(y)O(4) and (c) Zr1-xCTiO4 where A = Co, Cr, Fe, Mn. Ni or V (chromophores), B = Sb or W (counterions) ...
Repository :
National Research Council Faenza - ISTEC Repository
Language(s) :
English
The role of counterions (Mo, Nb, Sb, W) in Cr-, Mn-, Ni- and V-doped rutile ceramic pigments - Part 1. Crystal structure and phase transformations
Description :
Rutile is widely used as ceramic pigment for its excellent optical properties, high melting point and intense coloration when doped with transition elements. Industrial ceramic pigments are manufactured from anatase Plus chromophore elements (Cr, Mn, Ni or V) and counterions (Nb, Sb or W). Several s...
Repository :
National Research Council Faenza - ISTEC Repository
Language(s) :
English
The Role of counterions (Mo, Nb, Sb, W) in Cr-, Mn-, Ni- and V-doped rutile ceramic pigments. Part 2. Colour and technological properties
Description :
Industrial rutile pigments are manufactured using several chromophores: Cr (giving an orange hue), Mn (tan), Ni (yellow) and V (gray); a second element, the so-called counterion (i.e. Mo, Sb, Nb or W) is always added in order to achieve the desired coloration and/or improve the technological propert...
Repository :
National Research Council Faenza - ISTEC Repository
Language(s) :
English
Crystal structural and optical properties of Cr-doped Y2Ti2O7 and Y2Sn2O7 pyrochlores
Description :
Pyrochlore-type [A(2)(VIII)B(2)(VI)O(6)O] rare earth stannates (PS) and titanates (PT), doped with increasing amounts of Cr, develop colours 2 2 ranging from magenta to brown. Combined X-ray and neutron diffraction data revealed that Cr solubility in both pyrochlores is very limited, i.e. 0.07 atoms...
Repository :
National Research Council Faenza - ISTEC Repository
Language(s) :
English
High-performance yellow ceramic pigments Zr(Ti1-x-ySnx-yVyMy)O4 (M = Al, In, Y): crystal structure, colouring mechanism and technological properties
Description :
Zirconium titanate-stannate doped with V with co-dopants Al, In or Y was synthesised by solid state reaction and its structural (XRD, SEM), optical (DRS) and technological properties were determined to assess its potential use as ceramic pigment. These compounds have a srilankite-type, disordered or...
Repository :
National Research Council Faenza - ISTEC Repository
Language(s) :
English
Titania slag as a ceramic pigment
Description :
The phase transformations and colouring mechanisms that occur during the ceramic processing of titania slag were investigated using XRF-EDS, XRD, DRS and laboratory-scale application in glazed and unglazed tiles. The slag transforms to pseudobrookite, undergoing a drastic colour change during firing...
Repository :
National Research Council Faenza - ISTEC Repository
Language(s) :
English
Pseudobrookite ceramic pigments: crystal structural, optical and technological properties
Description :
Pseudobrookite pigments were synthesised by the conventional ceramic route, calcining at 1300 °C four mixtures, with a Fe2O3:TiO2 ratio ranging from 47:53 to 40:60, and were characterised by XRPD, DRS and colouring performance in several ceramic matrices. Titania in moderate excess of the Fe2TiO5 st...
Repository :
National Research Council Faenza - ISTEC Repository
Language(s) :
English
Crystal structure, optical properties and colouring performance of karrooite MgTi2O5 ceramic pigments
Description :
Karrooite, MgTi2O5, is a promising ceramic pigment due to its high refractoriness and refractive indices, as well as its ability to host transition metal ions in two crystallographically distinct octahedral sites. The colouring performance was investigated combining X-ray powder diffraction with UV-...
Repository :
National Research Council Faenza - ISTEC Repository
Language(s) :
English
Co-doped willemite ceramic pigments: technological behavior, crystal structure and optical properties
Description :
Cobalt-doped willemite is a promising blue ceramic pigment, but some important aspects concerning crystal structure, optical properties and technological behavior are still undisclosed. In order to get new insight on these features, willemite pigments (Zn2-xCoxSiO4, 0
Repository :
National Research Council Faenza - ISTEC Repository
Language(s) :
English
Colour development of red perovskite pigment Y(Al,Cr)O-3 in various ceramic applications
Description :
Ceramic pigments based on the perovskite structure develop a promising red hue and furthermore present no environmental or health problems. Pigment colouring efficiency was tested in different ceramic applications, both in the body and in glazes. Final products, with variations in both maximum firin...
Repository :
National Research Council Faenza - ISTEC Repository
Language(s) :
English