titanium compounds/ polymorphic transformationcoating systemsilica matrixmolecular layeringsurface rutileanatase layerThis work examines polymorphic transformations in a silica matrix-titania coating system produced by molecular layering. The presence of surface rutile formed during the synthesis of the coating ...
The enthalpy of coesite to 1070°K and the enthalpy of transformation for stishovite-silica glass were provided by means of a novel technique, "transposed-temperature" drop calorimetry. These data permit the delineation of P-T field phase boundaries for the stable equilibria coesite-quartz and ...
In the case of silica glass we have established, on the strength of infrared absorption bands, that those regions (clusters, substructures) have the high-cristobalite structure, which is metastable at room temperature and normal pressure. It has been possible to relax a polymorphic transformation ...
They presented a metal (Au) on dielectric (silica) waveguide containing a crystalline α-Ga section with dimensions of a few microns whose structural transformation could be triggered by changes in the temperature or through an external optical excitation. Interestingly, the energy...
Wirelessly controlled nanoscale robots have the potential to be used for both in vitro and in vivo biomedical applications. So far, the vast majority of reported micro- and nanoscale swimmers have taken the approach of mimicking the rotary motion of heli
Polymorphic TransformationCoke Oven Silica Brickssilica brick matrixAn attempt has been made to incorporate titania powder in silica brick matrix and to monitor the effect on the polymorphic transformation of silica. Titania powder in the average particle size range of 45 micron to 50 nanometers in ...
The DSC curves of pure drug and excipients were compared with their physical mixtures. Microcrystalline cellulose, titanium dioxide, colloidal silica, ferric oxide, lactose monohydrate, and sodium starch glycolate were compatible, while magnesium stearate, polyethylene glycol (PEG) 8000, Po...
Microscopic examination showed extensional failure had occurred with the formation of 'veins', oriented normal to the extension direction, containing fibers of silica with their length and c crystal axes parallel to the extension direction. From X-ray and microstructural observations, these are inferred...
MODEL OF POLYMORPHIC TRANSFORMATION IN A SHOCK WAVE. 2.SILICApolymorphismshock waveboron nitridephase transitionThe model relating the polymorphic transformation of a crystalline substance under shock wave loading to the change in its elastic energy is further considered, now by an example of boron ...
It is verified that silica has an inhibition effect during the phase‐transformation of CaCO3. With the addition of HPAM, a new morphology of CaCO3 composited with CaCO3 fibres was received in the HPAM‐Na2SiO3 mixed solution. In the ternary additive system, the template effect of HPAM is ...