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Use of silica fume and nano-silica in mortars attacked by acids present in pig manure
(2018-01-01)
Pig houses provide a highly aggressive environment to concrete structures. The chemical aggressiveness generated by pig manure may cause wear, loss in strength and premature damage to floors, leading to animal hoof diseases. ...
Rhodamine 6G encapsuled mesoporous silica channels
(Trans Tech Publications Ltd, 2009-01-01)
We report the effect of solvent on the rhodamine 6G encapsuled into channels of mesoporous silica, synthesized by two-step process that gives intermediary stable hybrid micelles. Mesoporous materials have been obtained by ...
Yttrium iron garnet heterocoagulated by silica
(2002-09-01)
Coated purpose of homogeneous distribution as a second phase is introduced in magnetic systems. Yttrium iron garnet (YIG) shows special interest as magnetic dye, microwave absorber, and magnetic fluids when heterocoagulated ...
Copper Hexacyanoferrate Formation on the Modified Silica Surface with DAB-Am-16 Dendrimer
(Wiley-v C H Verlag Gmbh, 2011-01-01)
The third generation (G-3) polypropylenimine hexadecaamine dendrimer (DAB-Am-16) was grafted onto the silica gel surface. The modified silica interacts easily with Cu(2+) and then with potassium ferrocyanide to form copper ...
The influence of silica fume on the apparent activation energy of HPC mixtures
(2005-09-01)
The use of the maturity approach has been increasing in various fields of concrete construction. In order to estimate the development of a mechanical property of the concrete mixture reliably, it is necessary to previously ...
Defect-induced photoluminescence of powdered silica glass
(2008-03-27)
Visible photoluminescence was generated in standard soda-lime-silica glass powder, mechanically milled in a high-energy attrition mill. The broad emission band maximum shows a linear dependence on the exciting wavelength, ...
Rhodamine 6G encapsuled mesoporous silica channels
(2008-12-01)
We report the effect of solvent on the rhodamine 6G encapsuled into channels of mesoporous silica, synthesized by two-step process that gives intermediary stable hybrid micelles. Mesoporous materials have been obtained by ...
Strategic high quality quartz supply for fusion into silica glass
(Cairns, Austrália, 2012-07-10)
An extensive i n loc o survey o f main quartz producing regions in an extensive in loco survey of main quartz producing regions in Brazil integrated with physicochemical characterization studies of quartz lascas and their ...
Fractal character of the SAXS correlation volume in poly(ethylene glycol)/silica hybrid wet gels
(Springer, 2010-05-01)
Small-angle X-ray scattering (SAXS) was employed to study the nanostructural properties of poly(ethylene glycol)(PEG)/silica hybrid wet gels prepared from hydrolysis of tetraethoxysilane (TEOS) in mixtures with PEG/(PEG + ...
In Vivo Nanotoxicology Of Hybrid Systems Based On Copolymer/silica/anticancer Drug
(IOP PUBLISHING LTDBRISTOL, 2015)