Effect of pH on morphology, size and composition of calcium phosphate phase obtained in wet chemical

Manafi, Sahebali; Joughehdoust, Sedigheh; Badiee, Seyyed Hossein

doi:10.1504/ijnm.2010.029934

Cited by 6 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Precipitation in aqueous solution is one of the fastest and simplest ways of apatite synthesis, which allows at the same time to control the crystals size [7][8][9][10][11]. Thereby, the composition of the product must be carefully controlled as it depends strongly on synthesis conditions and washing of the obtained precipitate.…”

Section: Introductionmentioning

confidence: 99%

Purity test of precipitated apatites by TG/DTA/EGA–MS

Tõnsuaadu

Bogdanovičienė

Traksmaa

2016

J Therm Anal Calorim

View full text Add to dashboard Cite

Pure Ca hydroxyapatites (CaHAp) and Na-, Mg-, Zn-and Sr-substituted precipitated apatites were characterized by X-ray diffraction analysis, Fourier transformed infrared spectroscopy and element, chemical, and TG/DTA-EGA-MS analysis at their heating up to 1200°C in Ar atmosphere. The evolvement of H 2 O, CO 2 , NH 3, and N x O y was followed by mass spectroscopy (MS). Comparison of thermal behavior of pure CaHAps and cation-substituted apatites indicates that the exact temperatures of the release of gases (thermal stability) depend strongly on the chemical composition and crystallinity of sample. The presence of nitrogen species was detected by TA-MS in all precipitated apatites, and its content (0.01-1 %) depends on the synthesis conditions, the washing profoundness as well as on the cationic composition of apatite.

show abstract