Cerca
Fracture patterns of quartz particles in glass feldspar matrix
(Elsevier, 2012)
We report a comparison between experimental evidences and simulation results of the micro cracking in ceramic materials provoked by the cooling process. The solid model and the fracture process are carried out using the ...
Electrokinetic and rheological properties of highly concentrated kaolin dispersions: Influence of particle volume fraction and dispersant concentration
(Elsevier, 2010)
An industrial kaolin was selected and characterised. Different dispersions were prepared with solids volume fractions between φ{symbol} = 0.20 and φ{symbol} = 0.47 in the presence of sodium silicate (between X<sub>s</sub> ...
Non-destructive measurement of bulk density distribution in large-sized ceramic tiles
(Elsevier, 2010)
An apparatus has been designed, built, and patented that is able, non-destructively, to determine bulk density distribution in large-sized ceramic tiles. The proposed method, based on the X-ray absorption technique, provides ...
A procedure to evaluate the resistance to biological colonization as a characteristic for product quality of ceramic roofing tiles
(Elsevier, 2011)
Ceramic roofing tiles suffer deterioration through time due to environmental exposure. Biological colonization affects the appearance and integrity of building materials, such as roofing tiles. The resistance to biocolonization ...
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, ...
ZnO and CuO crystal precipitation in sintering Cu-doped Ni–Zn ferrites. I. Influence of dry relative density and cooling rate
(Elsevier, 2011-10-15)
This paper presents a study of the precipitation of ZnO and CuO crystals during the sintering of Cu-doped Ni–Zn ferrites. The nature of the Zn- and Cu-containing crystal precipitates was determined by scanning electron ...
Alkaline activation of metakaolin–fly ash mixtures: Obtain of Zeoceramics and Zeocements
(Elsevier, 2008-02)
This study examines the variation in physico-mechanical properties and mineralogical and microstructural characteristics of the alkaline inorganic polymers obtained by alkaline activation, with a mixture of sodium silica ...
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 ...
Stability of ceramic glaze compositions. Correlation between partial dissolution and rheological properties. Part 1
(Society of Glass Technology, 2012)
When glaze compositions are prepared as aqueous suspensions, the frit is wet milled in an alumina ball mill with additives and water to obtain a glaze suspension with the appropriate rheological properties for subsequent ...
Determination of Carbon, Hydrogen, Nitrogen and Sulfur in Geological Materials Using Elemental Analysers
(Wiley, 2012)
This article describes a series of methods developed for the determination of total carbon (CTotal), organic carbon (Corg), hydrogen, nitrogen and sulfur. The following elemental analysers were used: LECO model RC-412 for ...