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5 790 (0,16s)

Result

Shade Variability of Cobalt Blue

This study maps the phase and colour variability of cobalt blue prepared according to historical recipes. The CoAl2O4 pigment was prepared by precipitation and solid-phase reactions, and the precipitation conditions, the influence f...

Arts, Art history

  • 2023
  • D
Result

The Mystery (Secret) of Coelin Blue

of magnesium in the compound was essential for achieving the blue hue of the cobalt, pigments derived from cobalt stannate with high phase purity, and to study some of the pigments, namely cassiterite and cobalt s...

Arts, Art history

  • 2024
  • D
Result

Trends in Colouring Blue Glass in Central Europe in Relation to Changes in Chemical Composition of Glass from the Middle Ages to Modern Age

The study deals with the development of the chemical composition of blue glass 100 glass samples (colourless, greenish, and blue) were evaluated by an XRF method to distinguish the colouring components of blue glass. As ear...

Archaeology

  • 2021
  • Jimp
  • Link
Result

Study of Colour Properties of Cassiterite Pigments Doped by Ions of Cobalt

By classic ceramic method, which is based on the solid state reaction, blue and blue-violet ceramic pigments of general formula Sn1-(x+y)CoxPyO2 were sythesized. The aim of this work was to assess the effect of the content of the ch...

JJ - Ostatní materiály

  • 2015
  • D
Result

Smalt production in the Ore Mountains: Characterization of samples related to the production of blue pigment in Bohemia

The study deals with the chemical composition of samples related to the production of a blue pigment/smalt. The samples examined come from the regions of Sovi represents smalt (potassium glass coloured with cobalt), while the second...

Ceramics

  • 2020
  • Jimp
  • Link
Result

The Effect of Preparation Method on Colour Properties of Blue-Violet Cassiterite Pigments

This research was focused on cassiterite pigments, where cobalt and titanium ions were used as a colouring admixtures and phosphorous ions were used as charge-compensating elements. For pigments the effect of preparation method on the colour...

CA - Anorganická chemie

  • 2016
  • Jx
Result

The Influence of Amount of Chromophore on the Color Properties of Malayaitte Pigment

The purpose of this work was to prepare non-traditional cobalt pigment with blue colouring with a minimum content of cobalt. Moreover, in the case of incorporation of the pigment into the vitreous surface of leadless glaze,...

JJ - Ostatní materiály

  • 2015
  • D
Result

Nanoarchitectonics of octahedral Co3O4/chitosan composite for photo-catalytic degradation of methylene blue and anti-bacterial activity

The octahedron-shaped spinel cobalt oxide micro-particles (Co3O4 MPs) are fabricated via the thermal decomposition of a new cobalt(III) complex precursor without employing toxic solvents, surfactants, and complicated equipment. The ...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2022
  • Jimp
  • Link
Result

Redefinition of thérèsemagnanite, NaCo4(SO4)(OH)6Cl•6H2O: new data and relationship to ‘cobaltogordaite’

’, recently described from the Blue Lizard mine, Utah, USA. Thérèsemagnanite is thus redefined in accordance with the new data obtained for the neotype specimen from Blue......

Mineralogy

  • 2018
  • Jimp
  • Link
Result

Chemical-technological research of unusual opaque blue glass from the 16th-17th century

The containers of the opaque blue glass can be found occasionally during the archaeological discovery in our area. This thesis is focused on the analytical research crystalline phase. The blue colouring is given by using iron oxides...

AC - Archeologie, antropologie, etnologie

  • 2012
  • Jx
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