期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 88, 期 1, 页码 237-243出版社
SPRINGER
DOI: 10.1007/s10973-006-8011-6
关键词
hydroxyapatite; nanopowders; sintering; thermal stability
Hydroxyapatite (HA) nanopowders were synthesised following two different precipitation routes: (a) from calcium nitrate and diammonium hydrogen phosphate solutions and (b) from calcium hydroxide suspension and phosphoric acid solution. The influence of precipitation process, concentration, and synthesis temperature on HA particle size and morphology, phase composition, thermal stability, and sintering behaviour was investigated by means of: thermogravimetry and differential thermal analysis (TG-DTA), induced coupled plasma-atomic emission spectroscopy (ICP-AES), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), electron microscopy (TEM, SEM) and dilatometry.
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