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Microstructure and phase composition of steatite ceramics sintered by traditional and spark plasma sintering

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2018
Terzic_Science-of-Sintering_50_2018_299-312.pdf (3.306Mb)
Authors
Terzić, Anja
Obradović, Nina
Pouchly, Vaclav
Stojanović, Jovica
Maca, Karel
Pavlović, Vladimir B.
Article (Published version)
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Abstract
The influence of the sintering method on the mineral phase transformations and development of the crystalline microstructure of steatite ceramics was investigated. The steatite samples were fabricated from talc and bentonite as low-cost raw materials. Feldspar and barium carbonate, as fluxing agents, were altered in the steatite composition. Dilatometric analysis was applied in the monitoring of the dimensional changes and thereby densification of steatite during the traditional sintering (TS) procedure up to 1200°C. Spark plasma sintering (SPS) method was used under the following sintering conditions: 100°C/min heating rate, uniaxial pressure of 50 MPa; sintering temperature 800°C/1 min or 1000°C/2 min. Crystallinity changes and mineral phase transition during sintering were observed by X-ray diffraction technique. Microstructural visualization of the samples and the spatial arrangements of individual chemical elements were achieved via scanning electron microscopy equipped with the E...DS mapping. It was found that SPS sintering facilitated all microstructural changes during high temperature treatment and shifted them to lower temperatures. SPS treatment conducted at 1000°C resulted in maximum densification of the steatite powder compacts and the formation stabilized protoenstatite structure. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. ON 172057 and Grant no. III 45008]

Keywords:
steatite ceramics / spark plasma sintering / electron microscopy / x-ray analysis / microstructure-final / magnesium silicate
Source:
Science of Sintering, 2018, 50, 3, 299-312
Publisher:
  • Belgrade : ETRAN
Funding / projects:
  • Directed synthesis, structure and properties of multifunctional materials (RS-172057)
  • Development and application of multifunctional materials using domestic raw materials in upgraded processing lines (RS-45008)

DOI: 10.2298/SOS1803299T

ISSN: 1820-7413; 0350-820X

WoS: 000452976600003

Scopus: 2-s2.0-85070026273
[ Google Scholar ]
5
3
Handle
https://hdl.handle.net/21.15107/rcub_dais_4536
URI
https://dais.sanu.ac.rs/123456789/4536
Collections
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - JOUR
AU  - Terzić, Anja
AU  - Obradović, Nina
AU  - Pouchly, Vaclav
AU  - Stojanović, Jovica
AU  - Maca, Karel
AU  - Pavlović, Vladimir B.
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/4536
AB  - The influence of the sintering method on the mineral phase transformations and development of the crystalline microstructure of steatite ceramics was investigated. The steatite samples were fabricated from talc and bentonite as low-cost raw materials. Feldspar and barium carbonate, as fluxing agents, were altered in the steatite composition. Dilatometric analysis was applied in the monitoring of the dimensional changes and thereby densification of steatite during the traditional sintering (TS) procedure up to 1200°C. Spark plasma sintering (SPS) method was used under the following sintering conditions: 100°C/min heating rate, uniaxial pressure of 50 MPa; sintering temperature 800°C/1 min or 1000°C/2 min. Crystallinity changes and mineral phase transition during sintering were observed by X-ray diffraction technique. Microstructural visualization of the samples and the spatial arrangements of individual chemical elements were achieved via scanning electron microscopy equipped with the EDS mapping. It was found that SPS sintering facilitated all microstructural changes during high temperature treatment and shifted them to lower temperatures. SPS treatment conducted at 1000°C resulted in maximum densification of the steatite powder compacts and the formation stabilized protoenstatite structure. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. ON 172057 and Grant no. III 45008]
PB  - Belgrade : ETRAN
T2  - Science of Sintering
T1  - Microstructure and phase composition of steatite ceramics sintered by traditional and spark plasma sintering
SP  - 299
EP  - 312
VL  - 50
IS  - 3
DO  - 10.2298/SOS1803299T
UR  - https://hdl.handle.net/21.15107/rcub_dais_4536
ER  - 
@article{
author = "Terzić, Anja and Obradović, Nina and Pouchly, Vaclav and Stojanović, Jovica and Maca, Karel and Pavlović, Vladimir B.",
year = "2018",
abstract = "The influence of the sintering method on the mineral phase transformations and development of the crystalline microstructure of steatite ceramics was investigated. The steatite samples were fabricated from talc and bentonite as low-cost raw materials. Feldspar and barium carbonate, as fluxing agents, were altered in the steatite composition. Dilatometric analysis was applied in the monitoring of the dimensional changes and thereby densification of steatite during the traditional sintering (TS) procedure up to 1200°C. Spark plasma sintering (SPS) method was used under the following sintering conditions: 100°C/min heating rate, uniaxial pressure of 50 MPa; sintering temperature 800°C/1 min or 1000°C/2 min. Crystallinity changes and mineral phase transition during sintering were observed by X-ray diffraction technique. Microstructural visualization of the samples and the spatial arrangements of individual chemical elements were achieved via scanning electron microscopy equipped with the EDS mapping. It was found that SPS sintering facilitated all microstructural changes during high temperature treatment and shifted them to lower temperatures. SPS treatment conducted at 1000°C resulted in maximum densification of the steatite powder compacts and the formation stabilized protoenstatite structure. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. ON 172057 and Grant no. III 45008]",
publisher = "Belgrade : ETRAN",
journal = "Science of Sintering",
title = "Microstructure and phase composition of steatite ceramics sintered by traditional and spark plasma sintering",
pages = "299-312",
volume = "50",
number = "3",
doi = "10.2298/SOS1803299T",
url = "https://hdl.handle.net/21.15107/rcub_dais_4536"
}
Terzić, A., Obradović, N., Pouchly, V., Stojanović, J., Maca, K.,& Pavlović, V. B.. (2018). Microstructure and phase composition of steatite ceramics sintered by traditional and spark plasma sintering. in Science of Sintering
Belgrade : ETRAN., 50(3), 299-312.
https://doi.org/10.2298/SOS1803299T
https://hdl.handle.net/21.15107/rcub_dais_4536
Terzić A, Obradović N, Pouchly V, Stojanović J, Maca K, Pavlović VB. Microstructure and phase composition of steatite ceramics sintered by traditional and spark plasma sintering. in Science of Sintering. 2018;50(3):299-312.
doi:10.2298/SOS1803299T
https://hdl.handle.net/21.15107/rcub_dais_4536 .
Terzić, Anja, Obradović, Nina, Pouchly, Vaclav, Stojanović, Jovica, Maca, Karel, Pavlović, Vladimir B., "Microstructure and phase composition of steatite ceramics sintered by traditional and spark plasma sintering" in Science of Sintering, 50, no. 3 (2018):299-312,
https://doi.org/10.2298/SOS1803299T .,
https://hdl.handle.net/21.15107/rcub_dais_4536 .

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