Search results for "Alcohol Dispersion"

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Influence of Temperature on Calcium Hydroxyapatite Nanopowders

2012

The aim of this work is to investigate the effects of thermal treatment, in the range of temperature between 80°C - 900°C, on crystallinity, morphology and particles size of calcium hydroxylapatite nanopowders (HAp). A complete study was carried out applying 31P Magic Angle Spinning NMR, X-ray diffraction, nitrogen porosimetry and Transmis- sion Electron Microscopy techniques. HAp specimens were prepared by chemical precipitation in an aqueous solution of calcium nitrate and ammonium hydrogen phosphate. The thermal treatment performed, showed the formation of crystals whose appearance has three main morphologies and different particles size. HAp treated up to 500°C showed a set of needle-li…

Materials sciencePrecipitation (chemistry)Alcohol DispersionMineralogyNanoparticlePrecipitationGeneral MedicinePorosimetryThermal treatmentHydroxylapatiteHydroxylapatitechemistry.chemical_compoundCrystallinitychemistryChemical engineeringThermal TreatmentCrystalliteDispersion (chemistry)Settore CHIM/02 - Chimica FisicaAdvances in Nanoparticles

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PEPhysical Sciences and Engineering
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LSLife Sciences
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SHSocial Sciences and Humanities
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