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Thermal analysis and SANS characterisation of hybrid materials for biomedical applications
Lancastre, J J H
;
Margaça, F M A
;
Ferreira, L M
;
Falcão, A N
;
Miranda, Salvado I M
;
Nabiça, M S M S
;
Fernandes, M H V
;
Almásy, L [Almásy, László, szerző] Neutronspektroszkópiai Osztály (SZFKI)
Angol nyelvű Szakcikk (Folyóiratcikk) Tudományos
Megjelent:
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 1388-6150 1572-8943 1588-2926
109
(1)
pp. 413-418
2012
X. Földtudományok Osztálya: D
SJR Scopus - Condensed Matter Physics: Q2
Azonosítók
MTMT: 2001991
DOI:
10.1007/s10973-011-1459-z
WoS:
000305058900050
Scopus:
84862148539
Egyéb URL:
http://dx.doi.org/10.1007/s10973-011-1459-z
arXiv:
1702.00565
Google scholar:
8957900939045308122
Szakterületek:
Fizika
Silicate hybrid materials were prepared by the sol-gel process with the addition of x mass% of zirconium propoxide (x = 0 and 1). The thermal behaviour as well as the influence of Zr addition was studied by thermal gravimetric analysis and differential thermal analysis. The microstructure evolution with temperature was investigated by X-ray diffraction and small-angle neutron scattering. It was found that the beginning of polymer degradation occurs at a higher temperature in the material prepared with addition of Zr than in the one prepared without. At the nanometric scale, the materials prepared without Zr show smooth interfaces, whereas those with Zr present a mass fractal structure. This structure is also observed in the material without Zr after thermal treatment at 200 °C. The results showed that bioactivity is favoured by mass fractal structures in comparison with one consisting of smooth surfaces. © 2011 Akadémiai Kiadó, Budapest, Hungary.
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2024-12-10 06:09
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