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Influence of different pore-forming agents on wollastonite microstructures

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2016
871.pdf (8.979Mb)
Authors
Obradović, Nina
Filipović, Suzana
Marković, Smilja
Mitrić, Miodrag
Antić, Vesna
Pavlović, Vladimir B.
Conference object (Published version)
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Abstract
In this study, highly porous macro- and micro-cellular wollastonite-based ceramics was synthesized. Ceramic precursor, methylhydrocyclosiloxane, together with micro-sized CaCO3, was used as starting material. After 20 min of ultrasound treatment, and calcination at 250 oC for 30 min, different pore-forming agents were added to the as-obtained powders. Differential thermal analysis was used to determine characteristic temperatures of processes occurring within powders during heating. Based on the obtained results, sintering regime was set up. Prepared mixtures were pressed into pallets and sintered at 900 oC. During the sintering regime, highly porous wollastonite-based ceramics was obtained. The phase composition of the sintered samples as well as microstructures was analyzed by the means of X-ray diffraction method and SEM. Two-phase system was detected in all samples, CaSiO3 wollastonite and Ca2SiO4 larnite, and their ratio varied with each pore-forming agent. It was observed that ad...dition of different pore-forming agent resulted in significantly different microstructures.

Keywords:
wollastonite / ceramic materials / sintering
Source:
Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : V Serbian Ceramic Society Conference, Sep 21-23 September 2016, Belgrade, 2016, 42-42
Publisher:
  • Belgrade : Serbian Ceramic Society
Projects:
  • Directed synthesis, structure and properties of multifunctional materials (RS-172057)

ISBN: 978-86-915627-4-8

[ Google Scholar ]
URI
http://dais.sanu.ac.rs/123456789/874
Collections
  • ITN SANU - Opšta kolekcija / ITS SASA - General collection
Institution
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - CONF
AU  - Obradović, Nina
AU  - Filipović, Suzana
AU  - Marković, Smilja
AU  - Mitrić, Miodrag
AU  - Antić, Vesna
AU  - Pavlović, Vladimir B.
PY  - 2016
UR  - http://dais.sanu.ac.rs/123456789/874
AB  - In this study, highly porous macro- and micro-cellular wollastonite-based ceramics was synthesized. Ceramic precursor, methylhydrocyclosiloxane, together with micro-sized CaCO3, was used as starting material. After 20 min of ultrasound treatment, and calcination at 250 oC for 30 min, different pore-forming agents were added to the as-obtained powders. Differential thermal analysis was used to determine characteristic temperatures of processes occurring within powders during heating. Based on the obtained results, sintering regime was set up. Prepared mixtures were pressed into pallets and sintered at 900 oC. During the sintering regime, highly porous wollastonite-based ceramics was obtained. The phase composition of the sintered samples as well as microstructures was analyzed by the means of X-ray diffraction method and SEM. Two-phase system was detected in all samples, CaSiO3 wollastonite and Ca2SiO4 larnite, and their ratio varied with each pore-forming agent. It was observed that addition of different pore-forming agent resulted in significantly different microstructures.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : V Serbian Ceramic Society Conference, Sep 21-23 September 2016, Belgrade
T1  - Influence of different pore-forming agents on wollastonite microstructures
SP  - 42
EP  - 42
ER  - 
@conference{
author = "Obradović, Nina and Filipović, Suzana and Marković, Smilja and Mitrić, Miodrag and Antić, Vesna and Pavlović, Vladimir B.",
year = "2016",
url = "http://dais.sanu.ac.rs/123456789/874",
abstract = "In this study, highly porous macro- and micro-cellular wollastonite-based ceramics was synthesized. Ceramic precursor, methylhydrocyclosiloxane, together with micro-sized CaCO3, was used as starting material. After 20 min of ultrasound treatment, and calcination at 250 oC for 30 min, different pore-forming agents were added to the as-obtained powders. Differential thermal analysis was used to determine characteristic temperatures of processes occurring within powders during heating. Based on the obtained results, sintering regime was set up. Prepared mixtures were pressed into pallets and sintered at 900 oC. During the sintering regime, highly porous wollastonite-based ceramics was obtained. The phase composition of the sintered samples as well as microstructures was analyzed by the means of X-ray diffraction method and SEM. Two-phase system was detected in all samples, CaSiO3 wollastonite and Ca2SiO4 larnite, and their ratio varied with each pore-forming agent. It was observed that addition of different pore-forming agent resulted in significantly different microstructures.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : V Serbian Ceramic Society Conference, Sep 21-23 September 2016, Belgrade",
title = "Influence of different pore-forming agents on wollastonite microstructures",
pages = "42-42"
}
Obradović N, Filipović S, Marković S, Mitrić M, Antić V, Pavlović VB. Influence of different pore-forming agents on wollastonite microstructures. Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : V Serbian Ceramic Society Conference, Sep 21-23 September 2016, Belgrade. 2016;:42-42
Obradović, N., Filipović, S., Marković, S., Mitrić, M., Antić, V.,& Pavlović, V. B. (2016). Influence of different pore-forming agents on wollastonite microstructures.
Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : V Serbian Ceramic Society Conference, Sep 21-23 September 2016, BelgradeBelgrade : Serbian Ceramic Society., null, 42-42. 
Obradović Nina, Filipović Suzana, Marković Smilja, Mitrić Miodrag, Antić Vesna, Pavlović Vladimir B., "Influence of different pore-forming agents on wollastonite microstructures" null (2016):42-42

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