Results 31 to 40 of about 23,349 (255)

Co-doped willemite ceramic pigments: technological behavior, crystal structure and optical properties [PDF]

open access: yes, 2010
Cobalt-doped willemite is a promising blue ceramic pigment, but some important aspects concerning crystal structure, optical properties and technological behavior are still undisclosed.
Ardit, Matteo   +5 more
core   +1 more source

Synthesis and characterization of lanthanum- and yttrium-doped Fe2O3 pigments Síntese e caracterização de pigmentos de Fe2O3 dopados com lantânio e ítrio

open access: yesCerâmica, 2007
Iron oxide has been doped with rare earth ions (yttrium or lanthanum) aiming at producing ceramic pigments with hues that vary from orange to brown. The powders were synthesized from polymeric precursors using the Pechini method and subsequently calcined
D. M. A. Melo   +5 more
doaj   +1 more source

New Chromium-Calcium Titanate Red Ceramic Pigment [PDF]

open access: yesAdvances in Science and Technology, 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 as red-brown pigment in a CaO-ZnO-SiO2 transparent glaze used for ceramic tiles (1080°C).
Gargori, Carina   +5 more
openaire   +2 more sources

Phase and chemical composition analysis of pigments used in Cucuteni Neolithic painted ceramics

open access: yesDocumenta Praehistorica, 2007
Two analytical methods – 241Am-based X-Ray Fluorescence (XRF) and Synchrotron Radiation X-ray Diffraction (SR-XRD) – were used to investigate the elemental and mineralogical composition of pigments which decorate some Cucuteni Neolithic ceramic sherds ...
Bogdan Constantinescu   +3 more
doaj   +1 more source

Extraction of Titaniumdioxide by sulfate method from ilmenite 40.29% [PDF]

open access: yesشیمی کاربردی روز, 2009
Titanium dioxide TiO2, occurs in nature in the modifications rutile, anatase, and brookite. Rutile and anatase are produced industrially in large quantities and are used as pigments and catalysts, and in the production of ceramic and electronic materials.
Solmaz Bayati, Noreddin Haghighi
doaj   +1 more source

Water-based ink-jet ink based on nano Ni and Sb doped TiO2 prepared for printing on ceramics

open access: yesJournal of Asian Ceramic Societies, 2021
This study reports a simple approach to prepare a nano-TiO2-Sb-Ni yellow ink-jet ink. Yellow pigments, in terms of their morphology and color appearance, were synthesized by changing Ni/Sb molar ratios and calcination temperatures. Moreover, the particle
F. Talavar   +3 more
doaj   +1 more source

Synthesis of coloured ceramic pigments by using chromite and manganese ores mixtures Síntese de pigmentos cerâmicos coloridos usando misturas de cromita e de minérios de manganês

open access: yesCerâmica, 2010
The aim of this work is not only the synthesis of black ceramic pigment with spinel structure using local and inexpensive minerals (chromite and manganese ores) but also throw some light on the relations between the structure and the colour of obtained ...
M. H Aly, I. S Ismael, F Bondioli
doaj   +1 more source

Concentrations of lead in ceramic tableware in South Africa

open access: yesSouth African Journal of Science, 2023
Ceramic ware is used around the world, usually daily. In the past, lead was used in the glazes and decorative paints applied to ceramic ware, mainly to increase durability, impart a smooth, glasslike finish to glazes and intensify decorative pigments ...
Angela Mathee   +2 more
doaj   +1 more source

Zirconium titanate ceramic pigments: Crystal structure, optical spectroscopy and technological properties [PDF]

open access: yes, 2006
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.
Cruciani, G., Dondi, M., Matteucci, F.
core   +1 more source

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

open access: yesAdvanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan   +2 more
wiley   +1 more source

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