Surface and Porous Characteristics of Spray Dried Hydroxyapatite Microspheres

Abstract:

Surface and porous characteristics of spray dried hydroxyapatite microspheres were studied by surface area and pore size analyzer, field-emission scanning electron microscope, Fourier transform infrared spectroscope, etc. The results indicated dehydration did not happened for those samples calcined at 1000°C, and the intensity of OH- absorption bands increased. Hydroxyapatite microspheres were composed of near-spherical crystals with the diameter of 20-50nm. Besides, it was interesting to find that hydroxyapatite crystals formed small aggregate firstly during drying, and then the small aggregate united together and formed particles with spherical structure.

• Periodical: Advanced Materials Research (Volumes 197-198)
• Pages: 156-159
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.197-198.156
• Online since: February 2011
• Authors: Ai Juan Wang, Jun Ming Li, Bai Ling Jiang, Yu Peng Lv
• Keywords: Hydroxyapatite Microsphere, Microstructure, Spray Drying

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