Now showing items 41-50 of 1402
Controlling the growth of zirconia needles precursor from a liquid crystal template
(Elsevier B.V., 2010-01-05)
This work reports the directional growth of macroscopic ceramic needles by combining a thermo-responsive Sulfated hydroxy zirconyl (SHZ) hydrosol with a swollen hexagonal liquid crystal (SHLC). The effect of the molar ratio ...
Microwave-assisted hydrothermal synthesis of structurally and morphologically controlled sodium niobates by using niobic acid as a precursor
(Wiley-v C H Verlag Gmbh, 2008-03-01)
There are many advantages to using a microwave as a source of heat in hydrothermal reactions. Because it is a quick and homogeneous way to crystallize ceramic powders, it was used in this work for the production of ...
Morphological transformation and kinetic analysis in the aluminum-mediated a-Si:H crystallization
We analyzed the amorphous–crystalline morphological transformation of a-Si:H films caused by applying an annealing treatment to the Al/a-Si:H system at low temperature (250 C) during several hours. Optical micrographs ...
Crystallization of amorphous GaAs films prepared onto different substrates
This work reports changes in structural properties produced by thermal annealing of flash evaporated amorphous GaAs films using the micro-Raman scattering and the X-ray diffraction (XRD) techniques. Films of about 1 μm ...
beta-ZnMoO4 microcrystals synthesized by the surfactant-assisted hydrothermal method: Growth process and photoluminescence properties
(ELSEVIER SCIENCE BVAMSTERDAM, 2012-02-20)
In this communication, we investigate the effect of different surfactants: cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS) and polyvinylpyrrolidone (PVP-K40) on the growth process of zinc molybdate ...
Understanding the Crystallization Mechanism of a Wollastonite Base Glass Using Isoconversional, IKP Methods and Master Plots
The complex development of crystals found in the crystallization of SiO2-Al2O3-CaO-Na2O glass has been explained using Differential Thermal Analysis. The crystal growth process has been studied using isoconversional, ...
Some experiments on the crystal growth and characterization of Fe(17)R(2) (R equals rare earth) single crystals by the Bridgman method
(Elsevier Science BvAmsterdamHolanda, 1997)