Synthesis, morphology, and formation mechanism of mullite particles produced by ultrasonic spray pyrolysis
Само за регистроване кориснике
1996
Аутори
Janaćković, ĐorđeJokanović, Vukoman
Kostić Gvozdenović, Ljiljana
Živković, Ljiljana
Uskoković, Dragan
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Submicrometer spherical particles of mullite powder were synthesized by ultrasonic spray pyrolysis of emulsion and solutions, using tetra-ethyl-orthosilicate (TEOS) or silicic-acid and Al(NO3)(3) . 9H(2)O as initial compounds. Crystallization of mullite phase was determined by differential thermal (DT), thermogravimetric (TG), infrared (IR), and x-ray analyses. The synthesis of mullite from TEOS emulsion occurs by crystallization of gamma-Al2O3 (or Al, Si-spinel) from the amorphous phase and its subsequent reaction with amorphous SiO2, as well as by crystallization of pseudotetragonal mullite below 1000 degrees C and its subsequent phase transformation into orthorhombic mullite, in the powders produced from silicic acid solutions, synthesis of mullite occurs only by crystallization of gamma-Al2O3 between 900 and 1000 degrees C and its further reaction with amorphous SiO2 between 1100 and 1200 degrees C. Particle formation mechanism depended directly on the initial emulsion or solution ...preparation. i.e., on the phase separation in the emulsion and on the silicic-acid crosslinking conditions.
Кључне речи:
crystallization / mullite / ultrasonic spray pyrolysis / crystallization / ZnOИзвор:
Journal of Materials Research, 1996, 11, 7, 1706-1716Издавач:
- New York : Cambridge Univ Press
DOI: 10.1557/JMR.1996.0214
ISSN: 0884-2914
WoS: A1996UX15700016
Scopus: 2-s2.0-0030191153
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Janaćković, Đorđe AU - Jokanović, Vukoman AU - Kostić Gvozdenović, Ljiljana AU - Živković, Ljiljana AU - Uskoković, Dragan PY - 1996 UR - https://dais.sanu.ac.rs/123456789/10665 AB - Submicrometer spherical particles of mullite powder were synthesized by ultrasonic spray pyrolysis of emulsion and solutions, using tetra-ethyl-orthosilicate (TEOS) or silicic-acid and Al(NO3)(3) . 9H(2)O as initial compounds. Crystallization of mullite phase was determined by differential thermal (DT), thermogravimetric (TG), infrared (IR), and x-ray analyses. The synthesis of mullite from TEOS emulsion occurs by crystallization of gamma-Al2O3 (or Al, Si-spinel) from the amorphous phase and its subsequent reaction with amorphous SiO2, as well as by crystallization of pseudotetragonal mullite below 1000 degrees C and its subsequent phase transformation into orthorhombic mullite, in the powders produced from silicic acid solutions, synthesis of mullite occurs only by crystallization of gamma-Al2O3 between 900 and 1000 degrees C and its further reaction with amorphous SiO2 between 1100 and 1200 degrees C. Particle formation mechanism depended directly on the initial emulsion or solution preparation. i.e., on the phase separation in the emulsion and on the silicic-acid crosslinking conditions. PB - New York : Cambridge Univ Press T2 - Journal of Materials Research T1 - Synthesis, morphology, and formation mechanism of mullite particles produced by ultrasonic spray pyrolysis SP - 1706 EP - 1716 VL - 11 IS - 7 DO - 10.1557/JMR.1996.0214 UR - https://hdl.handle.net/21.15107/rcub_dais_10665 ER -
@article{ author = "Janaćković, Đorđe and Jokanović, Vukoman and Kostić Gvozdenović, Ljiljana and Živković, Ljiljana and Uskoković, Dragan", year = "1996", abstract = "Submicrometer spherical particles of mullite powder were synthesized by ultrasonic spray pyrolysis of emulsion and solutions, using tetra-ethyl-orthosilicate (TEOS) or silicic-acid and Al(NO3)(3) . 9H(2)O as initial compounds. Crystallization of mullite phase was determined by differential thermal (DT), thermogravimetric (TG), infrared (IR), and x-ray analyses. The synthesis of mullite from TEOS emulsion occurs by crystallization of gamma-Al2O3 (or Al, Si-spinel) from the amorphous phase and its subsequent reaction with amorphous SiO2, as well as by crystallization of pseudotetragonal mullite below 1000 degrees C and its subsequent phase transformation into orthorhombic mullite, in the powders produced from silicic acid solutions, synthesis of mullite occurs only by crystallization of gamma-Al2O3 between 900 and 1000 degrees C and its further reaction with amorphous SiO2 between 1100 and 1200 degrees C. Particle formation mechanism depended directly on the initial emulsion or solution preparation. i.e., on the phase separation in the emulsion and on the silicic-acid crosslinking conditions.", publisher = "New York : Cambridge Univ Press", journal = "Journal of Materials Research", title = "Synthesis, morphology, and formation mechanism of mullite particles produced by ultrasonic spray pyrolysis", pages = "1706-1716", volume = "11", number = "7", doi = "10.1557/JMR.1996.0214", url = "https://hdl.handle.net/21.15107/rcub_dais_10665" }
Janaćković, Đ., Jokanović, V., Kostić Gvozdenović, L., Živković, L.,& Uskoković, D.. (1996). Synthesis, morphology, and formation mechanism of mullite particles produced by ultrasonic spray pyrolysis. in Journal of Materials Research New York : Cambridge Univ Press., 11(7), 1706-1716. https://doi.org/10.1557/JMR.1996.0214 https://hdl.handle.net/21.15107/rcub_dais_10665
Janaćković Đ, Jokanović V, Kostić Gvozdenović L, Živković L, Uskoković D. Synthesis, morphology, and formation mechanism of mullite particles produced by ultrasonic spray pyrolysis. in Journal of Materials Research. 1996;11(7):1706-1716. doi:10.1557/JMR.1996.0214 https://hdl.handle.net/21.15107/rcub_dais_10665 .
Janaćković, Đorđe, Jokanović, Vukoman, Kostić Gvozdenović, Ljiljana, Živković, Ljiljana, Uskoković, Dragan, "Synthesis, morphology, and formation mechanism of mullite particles produced by ultrasonic spray pyrolysis" in Journal of Materials Research, 11, no. 7 (1996):1706-1716, https://doi.org/10.1557/JMR.1996.0214 ., https://hdl.handle.net/21.15107/rcub_dais_10665 .