Microwave sintering of fine grained HAP and HAP/TCP bioceramics
Authorized Users Only
2010
Authors
Veljović, Đorđe
Zalite, Ilmars
Palcevskis, Eriks
Smičiklas, Ivana D.

Petrović, Rada

Janaćković, Đorđe

Article (Published version)

Metadata
Show full item recordAbstract
The effect of microwave sintering conditions on the microstructure, phase composition and mechanical properties of materials based on hydroxyapatite (HAP) and tricalcium phosphate (TCP) was investigated. Fine grained monophase HAP and biphasic HAP/TCP biomaterials were processed starting from stoichiometric and calcium deficient nanosized HAP powders. The HAP samples microwave (MAT) sintered for 15 min at 900 degrees C, with average grain size of 130 nm, showed better densification, higher density and certainly higher hardness and fracture toughness than samples conventionally sintered for 2 h at the same temperature. By comparing MW sintered HAP and HAP/TCP samples, it was concluded that pure HAP ceramics have superior mechanical properties. For monophase MW sintered HAP samples, the decrease in the grain size from 1.59 mu m to 130 nm led to an increase in the fracture toughness from 0.85 MPa m(1/2) to 1.3 MPa m(1/2).
Keywords:
Grain size / Hardness / Apatite / Microwave sintering / ToughnessSource:
Ceramics International, 2010, 36, 2, 595-603Publisher:
- Elsevier Sci Ltd, Oxford
Funding / projects:
- Ministry of Education and Science of the Republic of Latvia [EUREKA E! 3033]
- Sinteza, struktura, svojstva i primena funkcionalnih nanostrukturnih keramičkih i biokeramičkih materijala (RS-142070)
- EUREKA E!3033 Bionanocomposite
DOI: 10.1016/j.ceramint.2009.09.038
ISSN: 0272-8842
WoS: 000273935100021
Scopus: 2-s2.0-71949085147
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Veljović, Đorđe AU - Zalite, Ilmars AU - Palcevskis, Eriks AU - Smičiklas, Ivana D. AU - Petrović, Rada AU - Janaćković, Đorđe PY - 2010 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1683 AB - The effect of microwave sintering conditions on the microstructure, phase composition and mechanical properties of materials based on hydroxyapatite (HAP) and tricalcium phosphate (TCP) was investigated. Fine grained monophase HAP and biphasic HAP/TCP biomaterials were processed starting from stoichiometric and calcium deficient nanosized HAP powders. The HAP samples microwave (MAT) sintered for 15 min at 900 degrees C, with average grain size of 130 nm, showed better densification, higher density and certainly higher hardness and fracture toughness than samples conventionally sintered for 2 h at the same temperature. By comparing MW sintered HAP and HAP/TCP samples, it was concluded that pure HAP ceramics have superior mechanical properties. For monophase MW sintered HAP samples, the decrease in the grain size from 1.59 mu m to 130 nm led to an increase in the fracture toughness from 0.85 MPa m(1/2) to 1.3 MPa m(1/2). PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - Microwave sintering of fine grained HAP and HAP/TCP bioceramics EP - 603 IS - 2 SP - 595 VL - 36 DO - 10.1016/j.ceramint.2009.09.038 ER -
@article{ author = "Veljović, Đorđe and Zalite, Ilmars and Palcevskis, Eriks and Smičiklas, Ivana D. and Petrović, Rada and Janaćković, Đorđe", year = "2010", abstract = "The effect of microwave sintering conditions on the microstructure, phase composition and mechanical properties of materials based on hydroxyapatite (HAP) and tricalcium phosphate (TCP) was investigated. Fine grained monophase HAP and biphasic HAP/TCP biomaterials were processed starting from stoichiometric and calcium deficient nanosized HAP powders. The HAP samples microwave (MAT) sintered for 15 min at 900 degrees C, with average grain size of 130 nm, showed better densification, higher density and certainly higher hardness and fracture toughness than samples conventionally sintered for 2 h at the same temperature. By comparing MW sintered HAP and HAP/TCP samples, it was concluded that pure HAP ceramics have superior mechanical properties. For monophase MW sintered HAP samples, the decrease in the grain size from 1.59 mu m to 130 nm led to an increase in the fracture toughness from 0.85 MPa m(1/2) to 1.3 MPa m(1/2).", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "Microwave sintering of fine grained HAP and HAP/TCP bioceramics", pages = "603-595", number = "2", volume = "36", doi = "10.1016/j.ceramint.2009.09.038" }
Veljović, Đ., Zalite, I., Palcevskis, E., Smičiklas, I. D., Petrović, R.,& Janaćković, Đ.. (2010). Microwave sintering of fine grained HAP and HAP/TCP bioceramics. in Ceramics International Elsevier Sci Ltd, Oxford., 36(2), 595-603. https://doi.org/10.1016/j.ceramint.2009.09.038
Veljović Đ, Zalite I, Palcevskis E, Smičiklas ID, Petrović R, Janaćković Đ. Microwave sintering of fine grained HAP and HAP/TCP bioceramics. in Ceramics International. 2010;36(2):595-603. doi:10.1016/j.ceramint.2009.09.038 .
Veljović, Đorđe, Zalite, Ilmars, Palcevskis, Eriks, Smičiklas, Ivana D., Petrović, Rada, Janaćković, Đorđe, "Microwave sintering of fine grained HAP and HAP/TCP bioceramics" in Ceramics International, 36, no. 2 (2010):595-603, https://doi.org/10.1016/j.ceramint.2009.09.038 . .