Detail publikace

Effect of moisture on the reactivity of alpha-tricalcium phosphate

ESPANOL, M. DAVIS, E. MESLET, E. MESTRES, G. MONTUFAR JIMENEZ, E. GINEBRA, M.

Originální název

Effect of moisture on the reactivity of alpha-tricalcium phosphate

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The ability of the high-temperature polymorph of tricalcium phosphate, & alpha;-TCP, to hydrolyse to calcium-deficient hydroxyapatite underlies many developments in the field of synthetic bone grafts, including calcium phosphate cements, foams, and self-setting inks. The objective of the present work was to investigate the effect of humidity on & alpha;-TCP powder reactivity. The results showed that a 3-week incubation at high relative humidity (80%) had no impact on reactivity, but, as the incubation was prolonged, the powder started to hydrolyse. This reactivity was associated to the presence of defects and to an amorphous phase induced during powder milling. Moisture studies performed under static/dynamic conditions gave comparable water adsorption percentages. The dynamic studies further proved irreversible water sorption, indicating that some water molecules reacted with the powder after short incubation times. Taken together, these results demonstrate that, although & alpha;-TCP powder adsorbs water from moisture immediately, the impact on reactivity appears only after several weeks of storage.

Klíčová slova

Moisture; Alpha-tricalcium phosphate; Relative humidity; Vapor sorption; Hydrolysis

Autoři

ESPANOL, M.; DAVIS, E.; MESLET, E.; MESTRES, G.; MONTUFAR JIMENEZ, E.; GINEBRA, M.

Vydáno

26. 2. 2023

Nakladatel

ELSEVIER SCI LTD

Místo

OXFORD

ISSN

0272-8842

Periodikum

Ceramics International

Ročník

49

Číslo

11

Stát

Spojené království Velké Británie a Severního Irska

Strany od

18228

Strany do

18237

Strany počet

10

URL

https://doi.org/10.1016/j.ceramint.2023.02.193

BibTex

@article{BUT187090,
  author="ESPANOL, M. and DAVIS, E. and MESLET, E. and MESTRES, G. and MONTUFAR JIMENEZ, E. and GINEBRA, M.",
  title="Effect of moisture on the reactivity of alpha-tricalcium phosphate",
  journal="Ceramics International",
  year="2023",
  volume="49",
  number="11",
  pages="18228--18237",
  doi="10.1016/j.ceramint.2023.02.193",
  issn="0272-8842",
  url="https://doi.org/10.1016/j.ceramint.2023.02.193"
}