Browsing QUIO_Articles by Keyword "Chromium"
Now showing items 1-9 of 9
-
Brown ceramic pigments based on chromium(III)-doped titanite obtained by spray pyrolysis
Elsevier (2008)Cr-doped titanite (CaTiSiO5) pigments were synthesized through spray pyrolysis of aerosols generated from aqueous solutions containing colloidal silica, calcium chloride, titanium(IV) oxychloride and chromium(III) nitrate. ... -
Ceramic pigments based on chromium doped alkaline earth titanates
Elsevier (2013-05)In this paper M(Ti1−xCrx)O3 with M=Mg, Ca, Sr, Ba and x=0.01, 0.03, 0.05, 0.1 compositions have been prepared by solid state reaction in order to analyze their reactivity, structure, limit of solid solution, stability and ... -
Iron and chromium doped perovskite (CaMO3 M = Ti, Zr) ceramic pigments, effect of mineralizer
Elsevier (2012-08)Solid solutions Ca(DxM1−x)O3 (M = Ti, Zr and D = Fe,Cr), have been studied as ceramic pigment in conventional ceramic glazes using 0.5 mol/mol of NH4Cl as flux agent by solid state reaction and by ammonia coprecipitation ... -
New chromium doped powellite (Cr–CaMoO4) yellow ceramic pigment
Elsevier (2015-06)A new chromium doped powellite (Cr–CaMoO4) yellow ceramic pigment alternative to yellow of praseodymium-zircon has been synthesised and characterised in order to analyse: (a) the stoichiometry of the solid solution, (b) ... -
New chromium-calcium titanate red ceramic pigment
Trans Tech Publications (2010)Synthesis and characterization of a new chromium- calcium titanate red ceramic pigment is described in this communication. The pigment is based on the solid solution of chromium (IV) in calcium titanate and was characterized ... -
Photoluminescence of synthetic titanite-group pigments: A rare quenching effect
Elsevier (2014)Chromium-doped titanite and malayaite samples, which were synthesised to evaluate their performance as ceramic pigments, show remarkable photoluminescence behaviour. Emissions of centres related to traces of trivalent ... -
Pink ceramic pigments based on chromium doped M(Al2-xCrx)O-4, M = Mg, Zn, normal spinel
Elsevier (2013-08)In this paper M(Al2−xCrx)O4, MMg, Zn and x from 0.05 to 2 compositions, have been prepared by solid state reaction in order to analyse their reactivity, structure, limit of solid solution, stability and pigmenting properties ... -
Structural and Spectroscopic Study of a New Pink Chromium-Free Er2(Ti,Zr)2O7 Ceramic Pigment
Wiley (2009)Transition metal ions are usually incorporated as chromophores into pyrochlore structures in order to develop colored compounds. However, due to the high toxicity of some of them (Cr, Ni, Co, Cd …), other nontoxic species ... -
Synthesis by pyrolysis of aerosols and ceramic application of Cr-doped CaYAlO4 red–orange pigments
Elsevier (2009)The synthesis of red–orange Cr-doped YCaAlO4 pigments has been improved (softer thermal conditions and lower environmental impact) and optimised by using the pyrolysis of aerosols method. We also study the crystallochemical ...