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Polyamide 6 (PA6) nanocomposites filled with 2, 4, 6, 8 wt% hydroxyapatite nanorods (nHA) were compounded in Brabender extruder followed by injection molding. The effect of nHA additions on the structure, mechanical properties and in vitro bioactivities of such nanocomposties were investigated. XRD patterns showed that PA6 crystallized exclusively in the ??-form by adding nHA. DSC analysis revealed...
Amorphous Fe73.5Si13.5B9Nb3Cu1 alloy was prepared by the chill block melt-spinning process and nanocrystalline alloy was obtained by annealing. The crystallization behavior was analysed by DSC, XRD and TEM. The electrochemical corrosion behaviors in different annealed states were performed by linear polarization method and electrochemical impedance spectroscopy in 1 mol/L HCl solution. The results...
The challenge of this work is to prepare ceramics in the form of powders crystallized type Na2-2xA2xPbP2O7 (A = Li, K, Ag and 0 < x < 1) by the method glass. These different compositions will be characterized by different techniques such as X-ray diffraction, spectroscopy FTIR and thermal analyses ATD, ATG and DSC to determine their local structures. Indeed, the absorption bands appeared in...
The aim of this work is to investigate the amorphous-to-crystalline phase transformation process in Ge2Sb2Te5 ternary alloys. The experiments were carried out using impedance and X-ray diffraction measurements. The results have shown that the crystallization process in an amorphous Ge2Sb2Te5 alloy starts from nuclei, which appear below Tc and which were identified as the crystalline Ge1Sb4Te7. As...
The aim of this work was to investigate the crystallization properties and crystallization temperature in SbTe thin films, with different content of Sb, using DSC, optical reflection at 650 nm and XRD measurements. DSC studies showed that crystallization temperature of the films depend on the Sb content. XRD measurements have shown that films with low Sb contents (less that 73 at. %) directly crystallized...
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