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Inert atmosphere processing of hydroxyapatite in the presence of lithium iron phosphate

Authorized Users Only
2018
Authors
Lukić, Miodrag J.
Kuzmanović, Maja
Sezen, Meltem
Bakan, Feray
Egelja, Adela
Veselinović, Ljiljana
Article (Published version)
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Abstract
The present study describes sintering behaviour of hydroxyapatite (HAp) upon addition of lithium iron phosphate (LFP) (1-10 wt.%) system in inert (Ar) atmosphere. The interaction between materials and melting of LFP influenced early and intermediate stages of HAp sintering, shifting the densification curves towards low-temperature side. Analysis of densification process indicated significant differences upon LFP addition. The reaction mechanism that assumes the initial interaction between phosphates from LFP and calcium from HAp was proposed, generating calcium vacancies and contributing to HAp densification. Cross-sections of sintered samples showed changes in microstructural properties, with uniform atomic distribution and presence of Li2Fe3O4 spherical inclusions (200 nm) located at grain boundaries of calcium phosphate matrix. The Rietveld refinement analysis indicated changes in structural and microstructural parameters like crystallite size, anisotropy and microstructural strain ...of HAp upon LFP addition. Mechanical characterisation indicated improvements in fracture behaviour upon LFP addition.

Keywords:
hydroxyapatite / sintering / phase transformation / microstructure
Source:
Journal of the European Ceramic Society, 2018, 38, 2120-2133
Projects:
  • Sabanci University Nanotechnology Research and Application Center (SUNUM) starter through JECS Trust
  • Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them (RS-45004)
Note:
  • Supporting information: http://dais.sanu.ac.rs/handle/123456789/5977
  • Peer-reviewed manuscript: http://dais.sanu.ac.rs/handle/123456789/4924

DOI: 10.1016/j.jeurceramsoc.2017.12.023

ISSN: 0955-2219

WoS: 000424716700137

Scopus: 2-s2.0-85038884297
[ Google Scholar ]
1
1
URI
http://dais.sanu.ac.rs/123456789/3357
Collections
  • ITN SANU - Opšta kolekcija / ITS SASA - General collection
Institution
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - JOUR
AU  - Lukić, Miodrag J.
AU  - Kuzmanović, Maja
AU  - Sezen, Meltem
AU  - Bakan, Feray
AU  - Egelja, Adela
AU  - Veselinović, Ljiljana
PY  - 2018
UR  - http://dais.sanu.ac.rs/123456789/3357
AB  - The present study describes sintering behaviour of hydroxyapatite (HAp) upon addition of lithium iron phosphate (LFP) (1-10 wt.%) system in inert (Ar) atmosphere. The interaction between materials and melting of LFP influenced early and intermediate stages of HAp sintering, shifting the densification curves towards low-temperature side. Analysis of densification process indicated significant differences upon LFP addition. The reaction mechanism that assumes the initial interaction between phosphates from LFP and calcium from HAp was proposed, generating calcium vacancies and contributing to HAp densification. Cross-sections of sintered samples showed changes in microstructural properties, with uniform atomic distribution and presence of Li2Fe3O4 spherical inclusions (200 nm) located at grain boundaries of calcium phosphate matrix. The Rietveld refinement analysis indicated changes in structural and microstructural parameters like crystallite size, anisotropy and microstructural strain of HAp upon LFP addition. Mechanical characterisation indicated improvements in fracture behaviour upon LFP addition.
T2  - Journal of the European Ceramic Society
T1  - Inert atmosphere processing of hydroxyapatite in the presence of lithium iron phosphate
SP  - 2120
EP  - 2133
VL  - 38
DO  - 10.1016/j.jeurceramsoc.2017.12.023
ER  - 
@article{
author = "Lukić, Miodrag J. and Kuzmanović, Maja and Sezen, Meltem and Bakan, Feray and Egelja, Adela and Veselinović, Ljiljana",
year = "2018",
url = "http://dais.sanu.ac.rs/123456789/3357",
abstract = "The present study describes sintering behaviour of hydroxyapatite (HAp) upon addition of lithium iron phosphate (LFP) (1-10 wt.%) system in inert (Ar) atmosphere. The interaction between materials and melting of LFP influenced early and intermediate stages of HAp sintering, shifting the densification curves towards low-temperature side. Analysis of densification process indicated significant differences upon LFP addition. The reaction mechanism that assumes the initial interaction between phosphates from LFP and calcium from HAp was proposed, generating calcium vacancies and contributing to HAp densification. Cross-sections of sintered samples showed changes in microstructural properties, with uniform atomic distribution and presence of Li2Fe3O4 spherical inclusions (200 nm) located at grain boundaries of calcium phosphate matrix. The Rietveld refinement analysis indicated changes in structural and microstructural parameters like crystallite size, anisotropy and microstructural strain of HAp upon LFP addition. Mechanical characterisation indicated improvements in fracture behaviour upon LFP addition.",
journal = "Journal of the European Ceramic Society",
title = "Inert atmosphere processing of hydroxyapatite in the presence of lithium iron phosphate",
pages = "2120-2133",
volume = "38",
doi = "10.1016/j.jeurceramsoc.2017.12.023"
}
Lukić MJ, Kuzmanović M, Sezen M, Bakan F, Egelja A, Veselinović L. Inert atmosphere processing of hydroxyapatite in the presence of lithium iron phosphate. Journal of the European Ceramic Society. 2018;38:2120-2133
Lukić, M. J., Kuzmanović, M., Sezen, M., Bakan, F., Egelja, A.,& Veselinović, L. (2018). Inert atmosphere processing of hydroxyapatite in the presence of lithium iron phosphate.
Journal of the European Ceramic Society, 38, 2120-2133. 
https://doi.org/10.1016/j.jeurceramsoc.2017.12.023
Lukić Miodrag J., Kuzmanović Maja, Sezen Meltem, Bakan Feray, Egelja Adela, Veselinović Ljiljana, "Inert atmosphere processing of hydroxyapatite in the presence of lithium iron phosphate" 38 (2018):2120-2133,
https://doi.org/10.1016/j.jeurceramsoc.2017.12.023 .

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