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The investigation of α→β phase transition in poly(vinylidene fluoride) (PVDF)
(2005-12-01)
The phase transition from the non-polar α-phase to the polar β-phase of poly(vinylidene fluoride) (PVDF) has been investigated using micro-Raman spectroscopy, which is advantageous for being a non-destructive technique. ...
Morphological and molecular analysis of the collagen fibers in inflammatory process
(2011-07-25)
Collagen makes up one third of the total protein in humans, being formed by the connection of three polypeptide chains arranged in a triple helix. This protein has fundamental importance in the formation of extracellular ...
Nucleation and crystallization of titania nanoparticles in silica titania planar waveguides: A study by low frequency Raman scattering
(2004-07-28)
SiO2 (1-x) - TiO2 (x) waveguides, with the mole fraction x in the range 0.07 - 0.20 and thickness of about 0.4 μm, were deposited on silica substrates by a dip-coating technique. The thermal treatments at 700-900°C, used ...
Morphological and molecular analysis of the collagen fibers in inflammatory process
(2011-12-01)
Collagen makes up one third of the total protein in humans, being formed by the connection of three polypeptide chains arranged in a triple helix. This protein has fundamental importance in the formation of extracellular ...
Structural refinement and photoluminescence properties of cube-like (Ca 1-xCu x)TiO 3 crystals synthesized by the microwave-hydrothermal method
(2012-08-20)
In this work, (Ca 1-xCu x)TiO 3 crystals with (x = 0, 0.01 and 0.02), labeled as CTO, CCTO1 and CCTO2, were synthesized by the microwave-hydrothermal method at 140°C for 32 min. XRD patterns (Fig. 1), Rietveld refinement ...
Spectroscopic studies on glassy Ni(II) and Co(II) polyphosphate coacervates
(Elsevier B.V. Sa, 2010-11-01)
Transparent amorphous bulk materials have been prepared through the coacervation process of sodium polyphosphate and Ni(2+) and Co(2+) chloride solutions. Structural and spectroscopic properties were analyzed by X-ray ...
Structural effects on perovskite phase formation for pzt powders obtained by polymeric precursor method
(2018-01-01)
Many synthesis methods are available to obtain a set of specific characteristics for lead zirconate titanate (PZT) piezoelectric ceramic powders. In this work, we have successfully prepared PZT powder samples through the ...