Thermo Optical Coefficient
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Nonlinear thermotropic and thermo-optical behaviour of planar oriented textures in nematic liquid crystals at phase transitions
Thermotropic, thermo-morphologic and thermo-optical properties of the planar oriented nematic liquid crystals have been investigated for large temperature interval and especially for the direct nematic - isotropic liquid and the reverse isotropic liquid - nematic phase transition regions. Temperature dependences of the optical transmission, absorption coeffi
Brazilian Journal of Physics. Publicado em: 2010-06
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2. Caracterização das propriedades ópticas não lineares de vidros teluretos, líquidos orgânicos e colóides de nanopartículas de ouro. / Characterization of the nonlinear optical properties, nonlinear refraction, thermo-optical coefficient, photonics-nonlinear materials.
Nesta tese, investigamos as propriedades ópticas não lineares de quatro sistemas físicos distintos: vidros teluretos, óleo de mamona, líquidos iônicos e colóides de nanopartículas de ouro. Utilizando as técnicas de varredura Z (Z-scan) e varredura de intensidade (I-scan) foi possível determinar os valores das contribuições de origem eletrônica (
Publicado em: 2008
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3. Estudo dos fenômenos que ocorrem durante o recozimento dos aços inoxidáveis austeníticos 304L e 316L deformados em várias temperaturas. / Study of the phenomena that occur during the annealing of worked AISI 304L and 316L austenitic stainless steels deformed at various temperatures.
Hot rolled AISI 304L and 316L austenitic stainless steel sheets, 6mm thick, presented recrystallized equiaxial grains with austenite and islands of delta ferrite, in larger quantities mainly in the center of both steel sheets. The austenite had a weak texture, with a gradient through the thickness. The solution annealing eliminated delta ferrite, however it
Publicado em: 2006