9 research outputs found
Structural Characterization of Gel-Derived Calcium Silicate Systems
No full textThe main aim of this study is to synthesize calcium silicate ceramics that exhibit suitable properties to be used for biomedical applications. In the present work, attention was paid to the understanding of processing-structure relationships. A particular effort was made to clarify the identification of Ca-O-Si bonds by means of spectroscopy. The calcium silicate systems were prepared via a sol-gel route, varying the chemical compositions, the catalyst concentration, and the temperature and time of aging and heat treatment. The processes and the phases evolved during the sol-gel procedure were determined. The bond systems were investigated by Fourier transform infrared (FTIR) and (29)Si magic angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy and the aggregate structures by scanning electron microscopy (SEM), small-angle neutron scattering (SANS), small-angle X-ray scattering (SAXS), wide-angle X-ray scattering (WAXS), and X-ray diffraction (XRD) measurements
Correlation between microstructural evolution during high-pressure torsion and isothermal heat treatment of amorphous Al 85
No full textWork-Hardening Induced Tensile Ductility of Bulk Metallic Glasses via High-Pressure Torsion
No full textDriving forces of impervious surface in a world metropolitan area, Shanghai: threshold and scale effect
No full textImproved segmentation and change detection of multi-spectral satellite imagery using graph cut based clustering and multiclass SVM
No full textSeasonal land cover changes and its effects on essential services of haor and non-haor areas of Kishoreganj district, Bangladesh
No full textSurface Morphology of Deformed Amorphous-Nanocrystalline Materials and the Formation of Nanocrystals
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