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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 ...
Tokamak Nova-unicamp Recent Results
(, 2002)
Supramolecular architecture and electrical properties of a perylene derivative in physical vapor deposited films
(2015-12-01)
The supramolecular structure of organic thin films is a key factor in their optical and electrical properties and, consequently, in the technological applications involving organic electronic. Here, thin films of a perylene ...
Colloidal particles: Spherical yttrium iron garnet
(Materials Research Society, 1998-01-01)
The purpose of this work is to obtain spherical particles YIG from micrometric to nanometric scales. The spherical particles were obtained from cation hydrolysis in acid medium by adding urea or ammonia in order to carry ...
Quantitative analysis of mineral content in enamel using laboratory microtomography and microhardness analysis. - art. no. 631823
(Spie - Int Soc Optical Engineering, 2006-01-01)
This study evaluates laboratory microtomography and microhardness analysis for quantifying the mineral content of bovine enamel. Fifty enamel blocks were submitted individually for 5 days to a pH-cycling model at 37 degrees ...
Quantitative analysis of mineral content in enamel using synchrotron microtomography and microhardness analysis. - art. no. 631824
(Spie - Int Soc Optical Engineering, 2006-01-01)
Synchrotron microtomography is a tool to quantify the mineralization of dental tissues as well as microhardness analysis, since they provide adequate precision and contrast sensitivity. This study evaluates synchrotron ...
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steel
(2005-12-01)
It is well known that fatigue behaviour is an important parameter to be considered in mechanical components subjected to constant and variable amplitude loadings. In combination with corrosion phenomenon, fatigue effects ...