Processing of dense nanostructured HAP ceramics by sintering and hot pressing
Само за регистроване кориснике
2009
Аутори
Veljović, ĐorđeJokić, Bojan
Petrović, Rada
Palcevskis, Eriks
Dindune, Antonija
Mihailescu, Ion N.
Janaćković, Đorđe
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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).
Кључне речи:
Sintering / Grain size / Mechanical properties / ApatiteИзвор:
Ceramics International, 2009, 35, 4, 1407-1413Издавач:
- Elsevier Sci Ltd, Oxford
Финансирање / пројекти:
- Синтеза, структура, својства и примена функционалних наноструктурних керамичких и биокерамичких материјала (RS-MESTD-MPN2006-2010-142070)
- EUREKA E!3033 Bionanocomposite
DOI: 10.1016/j.ceramint.2008.07.007
ISSN: 0272-8842
WoS: 000265007200014
Scopus: 2-s2.0-61849143214
Институција/група
Tehnološko-metalurški fakultetTY - 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 . .