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Processing of dense nanostructured HAP ceramics by sintering and hot pressing

Samo za registrovane korisnike
2009
Autori
Veljović, Đorđe
Jokić, Bojan
Petrović, Rada
Palcevskis, Eriks
Dindune, Antonija
Mihailescu, Ion N.
Janaćković, Đorđe
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentu
Apstrakt
A nanosized HAP powder was sintered and hot pressed, in order to obtain dense HAP ceramics. In a first series of experiments, the powder was isostatically pressed into uniform green compacts and sintered at temperatures ranging from 1000 degrees C to 1200 degrees C in air atmosphere for different times. In a second series, the isostatically pressed green compacts were hot pressed in argon atmosphere at 900 degrees C, 950 degrees C and 1000 degrees C. The SEM micrograph of the sample sintered at 1200 degrees C for 2 h showed a uniform 3 mu m mean grain size dense microstructure. In the case of hot pressed HAP compacts, full dense, translucent nanostructures were obtained having mean grain size below 100 nm and improved mechanical properties. With the grain size decreasing from 3 mu m to 50 nm, the fracture toughness of pure HAP ceramics increased from 0.28 MPa m(1/2) to 1.52 MPa m(1/2).
Ključne reči:
Sintering / Grain size / Mechanical properties / Apatite
Izvor:
Ceramics International, 2009, 35, 4, 1407-1413
Izdavač:
  • Elsevier Sci Ltd, Oxford
Finansiranje / projekti:
  • Sinteza, struktura, svojstva i primena funkcionalnih nanostrukturnih keramičkih i biokeramičkih materijala (RS-142070)
  • EUREKA E!3033 Bionanocomposite

DOI: 10.1016/j.ceramint.2008.07.007

ISSN: 0272-8842

WoS: 000265007200014

Scopus: 2-s2.0-61849143214
[ Google Scholar ]
78
78
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1504
Kolekcije
  • Radovi istraživača / Researchers’ publications (TMF)
Institucija/grupa
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Veljović, Đorđe
AU  - Jokić, Bojan
AU  - Petrović, Rada
AU  - Palcevskis, Eriks
AU  - Dindune, Antonija
AU  - Mihailescu, Ion N.
AU  - Janaćković, Đorđe
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1504
AB  - A nanosized HAP powder was sintered and hot pressed, in order to obtain dense HAP ceramics. In a first series of experiments, the powder was isostatically pressed into uniform green compacts and sintered at temperatures ranging from 1000 degrees C to 1200 degrees C in air atmosphere for different times. In a second series, the isostatically pressed green compacts were hot pressed in argon atmosphere at 900 degrees C, 950 degrees C and 1000 degrees C. The SEM micrograph of the sample sintered at 1200 degrees C for 2 h showed a uniform 3 mu m mean grain size dense microstructure. In the case of hot pressed HAP compacts, full dense, translucent nanostructures were obtained having mean grain size below 100 nm and improved mechanical properties. With the grain size decreasing from 3 mu m to 50 nm, the fracture toughness of pure HAP ceramics increased from 0.28 MPa m(1/2) to 1.52 MPa m(1/2).
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Processing of dense nanostructured HAP ceramics by sintering and hot pressing
EP  - 1413
IS  - 4
SP  - 1407
VL  - 35
DO  - 10.1016/j.ceramint.2008.07.007
ER  - 
@article{
author = "Veljović, Đorđe and Jokić, Bojan and Petrović, Rada and Palcevskis, Eriks and Dindune, Antonija and Mihailescu, Ion N. and Janaćković, Đorđe",
year = "2009",
abstract = "A nanosized HAP powder was sintered and hot pressed, in order to obtain dense HAP ceramics. In a first series of experiments, the powder was isostatically pressed into uniform green compacts and sintered at temperatures ranging from 1000 degrees C to 1200 degrees C in air atmosphere for different times. In a second series, the isostatically pressed green compacts were hot pressed in argon atmosphere at 900 degrees C, 950 degrees C and 1000 degrees C. The SEM micrograph of the sample sintered at 1200 degrees C for 2 h showed a uniform 3 mu m mean grain size dense microstructure. In the case of hot pressed HAP compacts, full dense, translucent nanostructures were obtained having mean grain size below 100 nm and improved mechanical properties. With the grain size decreasing from 3 mu m to 50 nm, the fracture toughness of pure HAP ceramics increased from 0.28 MPa m(1/2) to 1.52 MPa m(1/2).",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Processing of dense nanostructured HAP ceramics by sintering and hot pressing",
pages = "1413-1407",
number = "4",
volume = "35",
doi = "10.1016/j.ceramint.2008.07.007"
}
Veljović, Đ., Jokić, B., Petrović, R., Palcevskis, E., Dindune, A., Mihailescu, I. N.,& Janaćković, Đ.. (2009). Processing of dense nanostructured HAP ceramics by sintering and hot pressing. in Ceramics International
Elsevier Sci Ltd, Oxford., 35(4), 1407-1413.
https://doi.org/10.1016/j.ceramint.2008.07.007
Veljović Đ, Jokić B, Petrović R, Palcevskis E, Dindune A, Mihailescu IN, Janaćković Đ. Processing of dense nanostructured HAP ceramics by sintering and hot pressing. in Ceramics International. 2009;35(4):1407-1413.
doi:10.1016/j.ceramint.2008.07.007 .
Veljović, Đorđe, Jokić, Bojan, Petrović, Rada, Palcevskis, Eriks, Dindune, Antonija, Mihailescu, Ion N., Janaćković, Đorđe, "Processing of dense nanostructured HAP ceramics by sintering and hot pressing" in Ceramics International, 35, no. 4 (2009):1407-1413,
https://doi.org/10.1016/j.ceramint.2008.07.007 . .

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