Influence of nitrogen and air atmosphere during thermal treatment on micro and nano sized powders and sintered TiO2 specimens
Abstract
The influence of air and nitrogen atmosphere during heating on TiO2 nano and micro sized powders as well as sintered polycrystalline specimens was analyzed. Sintering of TiO2 nano and micro powders in air atmosphere was monitored in a dilatometer. Non compacted nano and micro powders were analyzed separately in air and nitrogen atmospheres during heating using thermo gravimetric (TG) and differential thermal analysis (DTA). The anatase to rutile phase transition temperature interval is influenced by the powder particle size and atmosphere change. At lower temperatures for nano TiO2 powder a second order phase transition was detected by both thermal techniques. Polycrystalline specimens obtained by sintering from nano powders were reheated in the dilatometer in nitrogen and air atmosphere, and their shrinkage is found to be different. Powder particle size influence, as well as the air and nitrogen atmosphere influence was discussed. [Projekat Ministarstva nauke Republike Srbije, br. OI1...72057 i br. III45014]
Keywords:
TG/DTA / dilatometry / nanopowders / sinteringSource:
Science of Sintering, 2014, 46, 3, 365-375Publisher:
- Belgrade : International Institute for the Science of Sintering
Funding / projects:
- Directed synthesis, structure and properties of multifunctional materials (RS-172057)
- Lithium-ion batteries and fuel cells - research and development (RS-45014)
DOI: 10.2298/SOS1403365L
ISSN: 0350-820X (Print); 1820-7413 (Online)
WoS: 000348599200010
Scopus: 2-s2.0-84920996226
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Labus, Nebojša AU - Mentus, Slavko AU - Đurić, Zorka Ž. AU - Nikolić, Maria Vesna PY - 2014 UR - https://dais.sanu.ac.rs/123456789/657 AB - The influence of air and nitrogen atmosphere during heating on TiO2 nano and micro sized powders as well as sintered polycrystalline specimens was analyzed. Sintering of TiO2 nano and micro powders in air atmosphere was monitored in a dilatometer. Non compacted nano and micro powders were analyzed separately in air and nitrogen atmospheres during heating using thermo gravimetric (TG) and differential thermal analysis (DTA). The anatase to rutile phase transition temperature interval is influenced by the powder particle size and atmosphere change. At lower temperatures for nano TiO2 powder a second order phase transition was detected by both thermal techniques. Polycrystalline specimens obtained by sintering from nano powders were reheated in the dilatometer in nitrogen and air atmosphere, and their shrinkage is found to be different. Powder particle size influence, as well as the air and nitrogen atmosphere influence was discussed. [Projekat Ministarstva nauke Republike Srbije, br. OI172057 i br. III45014] PB - Belgrade : International Institute for the Science of Sintering T2 - Science of Sintering T1 - Influence of nitrogen and air atmosphere during thermal treatment on micro and nano sized powders and sintered TiO2 specimens SP - 365 EP - 375 VL - 46 IS - 3 DO - 10.2298/SOS1403365L UR - https://hdl.handle.net/21.15107/rcub_dais_657 ER -
@article{ author = "Labus, Nebojša and Mentus, Slavko and Đurić, Zorka Ž. and Nikolić, Maria Vesna", year = "2014", abstract = "The influence of air and nitrogen atmosphere during heating on TiO2 nano and micro sized powders as well as sintered polycrystalline specimens was analyzed. Sintering of TiO2 nano and micro powders in air atmosphere was monitored in a dilatometer. Non compacted nano and micro powders were analyzed separately in air and nitrogen atmospheres during heating using thermo gravimetric (TG) and differential thermal analysis (DTA). The anatase to rutile phase transition temperature interval is influenced by the powder particle size and atmosphere change. At lower temperatures for nano TiO2 powder a second order phase transition was detected by both thermal techniques. Polycrystalline specimens obtained by sintering from nano powders were reheated in the dilatometer in nitrogen and air atmosphere, and their shrinkage is found to be different. Powder particle size influence, as well as the air and nitrogen atmosphere influence was discussed. [Projekat Ministarstva nauke Republike Srbije, br. OI172057 i br. III45014]", publisher = "Belgrade : International Institute for the Science of Sintering", journal = "Science of Sintering", title = "Influence of nitrogen and air atmosphere during thermal treatment on micro and nano sized powders and sintered TiO2 specimens", pages = "365-375", volume = "46", number = "3", doi = "10.2298/SOS1403365L", url = "https://hdl.handle.net/21.15107/rcub_dais_657" }
Labus, N., Mentus, S., Đurić, Z. Ž.,& Nikolić, M. V.. (2014). Influence of nitrogen and air atmosphere during thermal treatment on micro and nano sized powders and sintered TiO2 specimens. in Science of Sintering Belgrade : International Institute for the Science of Sintering., 46(3), 365-375. https://doi.org/10.2298/SOS1403365L https://hdl.handle.net/21.15107/rcub_dais_657
Labus N, Mentus S, Đurić ZŽ, Nikolić MV. Influence of nitrogen and air atmosphere during thermal treatment on micro and nano sized powders and sintered TiO2 specimens. in Science of Sintering. 2014;46(3):365-375. doi:10.2298/SOS1403365L https://hdl.handle.net/21.15107/rcub_dais_657 .
Labus, Nebojša, Mentus, Slavko, Đurić, Zorka Ž., Nikolić, Maria Vesna, "Influence of nitrogen and air atmosphere during thermal treatment on micro and nano sized powders and sintered TiO2 specimens" in Science of Sintering, 46, no. 3 (2014):365-375, https://doi.org/10.2298/SOS1403365L ., https://hdl.handle.net/21.15107/rcub_dais_657 .