Structural characterization of mechanically activated MgO-TiO2 system
Апстракт
In this article the influence of ball miling process on structure of MgO-TiO2 system was investigated. The mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for the time period from 0 to 120 minutes. The influence of mechanical activation on the lattice vibrational spectra was studied by Raman spectroscopy at room temperature. Structural investigations have been performed on produced powders. Nitrogen adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results have been obtained: specific surface area continuously decreased up to 40 minutes of activation and increased after that, reaching its minimun value of 5.5 m2/g. The Raman spectra of activated powders have shown that anatase modes have been decreasing in intensity and broadening as the time of activation extended. Also, the additional modes attributed to TiO2 II, srilankite and rutile phases started to appear as a consequence of activation.
Кључне речи:
MgO-TiO2 system / ball miling / mechanical activationИзвор:
Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade, 2013, 40-41Издавач:
- Belgrade : Serbian Ceramic Society
Финансирање / пројекти:
- Усмерена синтеза, структура и својства мултифункционалних материјала (RS-MESTD-Basic Research (BR or ON)-172057)
Институција/група
Poljoprivredni fakultetTY - CONF AU - Filipović, Suzana AU - Obradović, Nina AU - Šćepanović, M. AU - Pavlović, Vladimir B. AU - Ristić, Momčilo M. PY - 2013 UR - http://dais.sanu.ac.rs/123456789/418 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/5675 AB - In this article the influence of ball miling process on structure of MgO-TiO2 system was investigated. The mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for the time period from 0 to 120 minutes. The influence of mechanical activation on the lattice vibrational spectra was studied by Raman spectroscopy at room temperature. Structural investigations have been performed on produced powders. Nitrogen adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results have been obtained: specific surface area continuously decreased up to 40 minutes of activation and increased after that, reaching its minimun value of 5.5 m2/g. The Raman spectra of activated powders have shown that anatase modes have been decreasing in intensity and broadening as the time of activation extended. Also, the additional modes attributed to TiO2 II, srilankite and rutile phases started to appear as a consequence of activation. PB - Belgrade : Serbian Ceramic Society C3 - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade T1 - Structural characterization of mechanically activated MgO-TiO2 system EP - 41 SP - 40 UR - https://hdl.handle.net/21.15107/rcub_dais_418 ER -
@conference{ author = "Filipović, Suzana and Obradović, Nina and Šćepanović, M. and Pavlović, Vladimir B. and Ristić, Momčilo M.", year = "2013", abstract = "In this article the influence of ball miling process on structure of MgO-TiO2 system was investigated. The mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for the time period from 0 to 120 minutes. The influence of mechanical activation on the lattice vibrational spectra was studied by Raman spectroscopy at room temperature. Structural investigations have been performed on produced powders. Nitrogen adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results have been obtained: specific surface area continuously decreased up to 40 minutes of activation and increased after that, reaching its minimun value of 5.5 m2/g. The Raman spectra of activated powders have shown that anatase modes have been decreasing in intensity and broadening as the time of activation extended. Also, the additional modes attributed to TiO2 II, srilankite and rutile phases started to appear as a consequence of activation.", publisher = "Belgrade : Serbian Ceramic Society", journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade", title = "Structural characterization of mechanically activated MgO-TiO2 system", pages = "41-40", url = "https://hdl.handle.net/21.15107/rcub_dais_418" }
Filipović, S., Obradović, N., Šćepanović, M., Pavlović, V. B.,& Ristić, M. M.. (2013). Structural characterization of mechanically activated MgO-TiO2 system. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade Belgrade : Serbian Ceramic Society., 40-41. https://hdl.handle.net/21.15107/rcub_dais_418
Filipović S, Obradović N, Šćepanović M, Pavlović VB, Ristić MM. Structural characterization of mechanically activated MgO-TiO2 system. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade. 2013;:40-41. https://hdl.handle.net/21.15107/rcub_dais_418 .
Filipović, Suzana, Obradović, Nina, Šćepanović, M., Pavlović, Vladimir B., Ristić, Momčilo M., "Structural characterization of mechanically activated MgO-TiO2 system" in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade (2013):40-41, https://hdl.handle.net/21.15107/rcub_dais_418 .