Low temperature Ce2Si2O7 polymorph formed by mechanical activation
Апстракт
Studying solid state reaction between mechanically activated oxide powders of CeO2 and quartz-SiO2, we obtained directly during heat treatment, the low temperature polymorph of Ce2Si2O7 instead of the high temperature polymorph formed in non-activated oxides mixture. The mixture with composition corresponded to Ce2Si2O7 stoichiometry was mechanically activated by milling in high energetic vibratory mill for 2-120 min. Heating was done in an Astro furnace in a flowing argon atmosphere at 1200-1550 degrees C for 1 h while the specimens were furnace cooled. Crystallite size, lattice distortion and phases identification was performed by X-ray powder diffraction (XRD) analysis. Microstructure characterization of the mixtures was done using scanning electron microscopy (SEM). Low temperature polymorph of Ce2Si2O7 was obtained in activated mixtures at temperatures below 1400 degrees C. (c) 2005 Elsevier B.V All rights reserved.
Кључне речи:
inorganic compounds / phase transitions / powder diffraction / crystal structureИзвор:
Materials Chemistry and Physics, 2006, 95, 1, 150-153
DOI: 10.1016/j.matchemphys.2005.05.036
ISSN: 0254-0584
WoS: 000232813500027
Scopus: 2-s2.0-26444584957
Колекције
Институција/група
VinčaTY - JOUR AU - Zec, Slavica AU - Bošković, Snežana B. AU - Bogdanov, Žarko AU - Popovic, N PY - 2006 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2939 AB - Studying solid state reaction between mechanically activated oxide powders of CeO2 and quartz-SiO2, we obtained directly during heat treatment, the low temperature polymorph of Ce2Si2O7 instead of the high temperature polymorph formed in non-activated oxides mixture. The mixture with composition corresponded to Ce2Si2O7 stoichiometry was mechanically activated by milling in high energetic vibratory mill for 2-120 min. Heating was done in an Astro furnace in a flowing argon atmosphere at 1200-1550 degrees C for 1 h while the specimens were furnace cooled. Crystallite size, lattice distortion and phases identification was performed by X-ray powder diffraction (XRD) analysis. Microstructure characterization of the mixtures was done using scanning electron microscopy (SEM). Low temperature polymorph of Ce2Si2O7 was obtained in activated mixtures at temperatures below 1400 degrees C. (c) 2005 Elsevier B.V All rights reserved. T2 - Materials Chemistry and Physics T1 - Low temperature Ce2Si2O7 polymorph formed by mechanical activation VL - 95 IS - 1 SP - 150 EP - 153 DO - 10.1016/j.matchemphys.2005.05.036 ER -
@article{ author = "Zec, Slavica and Bošković, Snežana B. and Bogdanov, Žarko and Popovic, N", year = "2006", abstract = "Studying solid state reaction between mechanically activated oxide powders of CeO2 and quartz-SiO2, we obtained directly during heat treatment, the low temperature polymorph of Ce2Si2O7 instead of the high temperature polymorph formed in non-activated oxides mixture. The mixture with composition corresponded to Ce2Si2O7 stoichiometry was mechanically activated by milling in high energetic vibratory mill for 2-120 min. Heating was done in an Astro furnace in a flowing argon atmosphere at 1200-1550 degrees C for 1 h while the specimens were furnace cooled. Crystallite size, lattice distortion and phases identification was performed by X-ray powder diffraction (XRD) analysis. Microstructure characterization of the mixtures was done using scanning electron microscopy (SEM). Low temperature polymorph of Ce2Si2O7 was obtained in activated mixtures at temperatures below 1400 degrees C. (c) 2005 Elsevier B.V All rights reserved.", journal = "Materials Chemistry and Physics", title = "Low temperature Ce2Si2O7 polymorph formed by mechanical activation", volume = "95", number = "1", pages = "150-153", doi = "10.1016/j.matchemphys.2005.05.036" }
Zec, S., Bošković, S. B., Bogdanov, Ž.,& Popovic, N.. (2006). Low temperature Ce2Si2O7 polymorph formed by mechanical activation. in Materials Chemistry and Physics, 95(1), 150-153. https://doi.org/10.1016/j.matchemphys.2005.05.036
Zec S, Bošković SB, Bogdanov Ž, Popovic N. Low temperature Ce2Si2O7 polymorph formed by mechanical activation. in Materials Chemistry and Physics. 2006;95(1):150-153. doi:10.1016/j.matchemphys.2005.05.036 .
Zec, Slavica, Bošković, Snežana B., Bogdanov, Žarko, Popovic, N, "Low temperature Ce2Si2O7 polymorph formed by mechanical activation" in Materials Chemistry and Physics, 95, no. 1 (2006):150-153, https://doi.org/10.1016/j.matchemphys.2005.05.036 . .