Listar por tema "Colour"
Mostrando ítems 1-10 de 10
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Ceramic pigments with sphene structure obtained by both spray- and freeze-drying techniques
Elsevier (2009)The present study is focused on the procedure of spray- and freeze-drying techniques for the preparation of Cr-doped sphene pigments (CaSn0.98Cr0.02 SiO5, CaTi0.98Cr0.02SiO5) from an aqueous solution of precursor salts, ... -
Characteristics reproducibility of (Fe, Co)(Cr, Al)2O4 pigments obtained by solution combustion synthesis
Elsevier (2016-08-15)Synthesis reproducibility of mixed spinels Fe1−ΨCoΨCr2−2ΨAl2ΨO4 (0≤Ψ≤1), obtained by Solution Combustion Synthesis using urea as fuel, has been studied. Pigments with spinel structure Fd-3m have been obtained for all the ... -
Characterization of MgxM2 − xP2O7 (M = Cu and Ni) solid solutions
Elsevier (2012)In this study, MgxM2 − xP2O7 (M = Cu, Ni; 0 ≤ x ≤ 2) and Mg3 − yNiy(PO4)2 (0 ≤ y ≤ 3) compositions were synthesized by the chemical coprecipitation method and characterized by X-ray diffraction, UV–vis–NIR spectroscopy and ... -
Development of a yellow ceramic pigment based on silver nanoparticles
Elsevier (2012)In this study a yellow pigment was obtained for third-fire ceramic decorations, based on silver nanoparticles synthesised by the method of chemical reduction in aqueous phase, using silver nitrate and polyvinylpyrrolidone ... -
Solution Combustion Synthesis of (Co,Fe)Cr2O4 pigments
Elsevier (2012)The synthesis of mixed cobalt–iron chromites, Fe1−ΨCoΨCr2O4 (0 ≤ Ψ ≤ 1), has been studied by Solution Combustion Synthesis using urea as fuel. Characterization by XRD and SEM showed that crystallinity, cell parameters, ... -
Structural characterization and colour of MgxCu3-xV2O8 (0<=x<=3) and MgyCu2-yV2O7 (0<=y<=2) compositions
Springer (2015)In this study, MgxCu3-xV2O8 (0 ≤ x ≤ 3) and MgyCu2-yV2O7 (0 ≤ y ≤ 2) compositions were synthesized by the chemical coprecipitation method and characterized by X-ray diffraction, UV–vis-NIR spectroscopy and CIE L* a* ... -
Structural characterization and colour of Ni3VxP2−xO8 (0 ≤ x ≤ 2) and Ni2VyP2−yO7 (0 ≤ y ≤ 2) materials
Elsevier (2017)Structural characterization of Ni3VxP2−xO8 (0 ≤ x ≤ 2) and Ni2VyP2−yO7 (0 ≤ y ≤ 2) compositions was made and colour parameters of these materials measured. Ni(II) diphosphate and divanadate crystalline phases are not stables ... -
Sustainable inorganic pigments with high near-infra-red reflectance based on Fe3+ doped YAlO3 for high temperature applications
Elsevier (2023-10-15)Non-toxic inorganic pigments based on the Fe(III)-doped YAlO3 with high near-infra-red (NIR) reflectance were synthesized by a modified Pechini method at 1200 °C. A complete solid solution in the YAl1−xFexO3 system (0 ≤x ... -
Synthesis of diphosphate Mn2−xMgxP2O7 solid solutions with thortveitite structure: New pink ceramic dyes for the colouration of ceramic glazes
Elsevier (2012)Solid solutions of Mn and Mg mixed diphosphatesMn2-xMgxP2O7 (0.2 < x < 1.5) have been prepared by calcination (1000 °C/4 h) of coprecipitate precursors and characterized for the first time (through thermal analysis, XRD, ... -
Use of granite sludge wastes for the production of coloured cement-based mortars
Elsevier (2010)The value of granite sludge wastes (GS) in cement-based mortar formulations was examined by assessing their potential as structural components and pigments. Full characterization of GS was accomplished by X-ray fluorescence ...