Authors:Tamás Zsom, Viktória Zsom-Muha, Lien Phuong Le Nguyen, Dávid Nagy, Géza Hitka, Petra Polgári, and László Baranyai
illumination provided by two studio softboxes and a photo-box. Images were analyzed for surface color change and possible chilling injury defects by means of RGB (Red, Green, Blue) color components, normalized RGB values, HSL (Hue, Saturation, Luminosity
Authors:Petra Šulcová, Lucie Vitásková, and Miroslav Trojan
The research activities in the field of ceramic pigments are focused on investigation of pigments with thermal stability, ecological purity and interesting colour hues. The most requisite hues are yellow, pink
The novel two-step synthesis method decreasing
the calcining temperature necessary for formation of spinel lattice and as
well for reaching of bright and clear hue of the pigments prepared were investigated.
This work aims to utilization of DTA for synthesis monitoring. Influence of
raw materials and temperature of calcination on color properties were observed.
The characterization of the samples was performed by X-ray diffraction and
colorimetry in the CIE L*a*b* system. It
was proved that the black spinel pigment Cu2.3Mn2.8Cr4.9Ox can be prepared at finally temperature 700C as one-phase system with
high quality black hue.