Alumina as raw material in production of ceramic materials: the changes of alumina crystal structure by mechanical activation procedure
Апстракт
In this paper mechano-chemical activation of alumina and the influence of the activation process on the change of the alumina crystal structure is presented. This study is based on investigation of kinetics and mechanism of the particle formation together with the phase transformations occurring in the process. Theoretical principles of operation of high-energy mechano-activators, such as vibration and planetary mechano-activators during the mechano-chemical activation of alumina were used in the investigation, along with their dependance on selected experimental conditions, detailed investigation of the possibility to obtain high-grade aAl2O3 alumina in the form of micron-sized, non-agglomerated particles by the method of mechano-chemical activation combined with heat treatment, and starting from the gAl2O3 alumina modification after the Bayern process. The elements that are necessary for determination of operation of high-energy mechano-activators, particularly vibration and planetar...y ones, were determined by detailed investigation of the alumina mechano-chemical activation; also, conditions required to define the both technological and production parameters of mechano-chemical activation are fulfilled, too. Based on investigated parameters and theoretical consideration of the alumina mechano-chemical activation, together with its influences on change of the alumina crystal structure by usage of mechano-chemical activators with advanced construction and contemporary instrumental techniques used in determination and observation of the most important physical, chemical and thermic characteristics, kinetic model which is the basis for a quick and efficient determination of above parameters in order to optimize and automatise mechano-chemical activation processes was developed.
Кључне речи:
mechano-chemical activation / vibration and planetary mechano-activators / coarseness / specific surface area / specific energy consumption / structureИзвор:
Serbian Ceramic Society Conference “Advanced Ceramic and Application II – New frontiers in multifunctional material science and procession”, Book of Abstracts, Belgrade, Serbia (30.09-01.10.2013), 2013, 36-Колекције
Институција/група
Inovacioni centarTY - CONF AU - Andrić, Ljubiša AU - Terzić, Anja AU - Pavlović, Ljubica AU - Aćimović, Zagorka AU - Pavlović, Marko PY - 2013 UR - https://machinery.mas.bg.ac.rs/handle/123456789/7564 AB - In this paper mechano-chemical activation of alumina and the influence of the activation process on the change of the alumina crystal structure is presented. This study is based on investigation of kinetics and mechanism of the particle formation together with the phase transformations occurring in the process. Theoretical principles of operation of high-energy mechano-activators, such as vibration and planetary mechano-activators during the mechano-chemical activation of alumina were used in the investigation, along with their dependance on selected experimental conditions, detailed investigation of the possibility to obtain high-grade aAl2O3 alumina in the form of micron-sized, non-agglomerated particles by the method of mechano-chemical activation combined with heat treatment, and starting from the gAl2O3 alumina modification after the Bayern process. The elements that are necessary for determination of operation of high-energy mechano-activators, particularly vibration and planetary ones, were determined by detailed investigation of the alumina mechano-chemical activation; also, conditions required to define the both technological and production parameters of mechano-chemical activation are fulfilled, too. Based on investigated parameters and theoretical consideration of the alumina mechano-chemical activation, together with its influences on change of the alumina crystal structure by usage of mechano-chemical activators with advanced construction and contemporary instrumental techniques used in determination and observation of the most important physical, chemical and thermic characteristics, kinetic model which is the basis for a quick and efficient determination of above parameters in order to optimize and automatise mechano-chemical activation processes was developed. C3 - Serbian Ceramic Society Conference “Advanced Ceramic and Application II – New frontiers in multifunctional material science and procession”, Book of Abstracts, Belgrade, Serbia (30.09-01.10.2013) T1 - Alumina as raw material in production of ceramic materials: the changes of alumina crystal structure by mechanical activation procedure SP - 36 UR - https://hdl.handle.net/21.15107/rcub_machinery_7564 ER -
@conference{ author = "Andrić, Ljubiša and Terzić, Anja and Pavlović, Ljubica and Aćimović, Zagorka and Pavlović, Marko", year = "2013", abstract = "In this paper mechano-chemical activation of alumina and the influence of the activation process on the change of the alumina crystal structure is presented. This study is based on investigation of kinetics and mechanism of the particle formation together with the phase transformations occurring in the process. Theoretical principles of operation of high-energy mechano-activators, such as vibration and planetary mechano-activators during the mechano-chemical activation of alumina were used in the investigation, along with their dependance on selected experimental conditions, detailed investigation of the possibility to obtain high-grade aAl2O3 alumina in the form of micron-sized, non-agglomerated particles by the method of mechano-chemical activation combined with heat treatment, and starting from the gAl2O3 alumina modification after the Bayern process. The elements that are necessary for determination of operation of high-energy mechano-activators, particularly vibration and planetary ones, were determined by detailed investigation of the alumina mechano-chemical activation; also, conditions required to define the both technological and production parameters of mechano-chemical activation are fulfilled, too. Based on investigated parameters and theoretical consideration of the alumina mechano-chemical activation, together with its influences on change of the alumina crystal structure by usage of mechano-chemical activators with advanced construction and contemporary instrumental techniques used in determination and observation of the most important physical, chemical and thermic characteristics, kinetic model which is the basis for a quick and efficient determination of above parameters in order to optimize and automatise mechano-chemical activation processes was developed.", journal = "Serbian Ceramic Society Conference “Advanced Ceramic and Application II – New frontiers in multifunctional material science and procession”, Book of Abstracts, Belgrade, Serbia (30.09-01.10.2013)", title = "Alumina as raw material in production of ceramic materials: the changes of alumina crystal structure by mechanical activation procedure", pages = "36", url = "https://hdl.handle.net/21.15107/rcub_machinery_7564" }
Andrić, L., Terzić, A., Pavlović, L., Aćimović, Z.,& Pavlović, M.. (2013). Alumina as raw material in production of ceramic materials: the changes of alumina crystal structure by mechanical activation procedure. in Serbian Ceramic Society Conference “Advanced Ceramic and Application II – New frontiers in multifunctional material science and procession”, Book of Abstracts, Belgrade, Serbia (30.09-01.10.2013), 36. https://hdl.handle.net/21.15107/rcub_machinery_7564
Andrić L, Terzić A, Pavlović L, Aćimović Z, Pavlović M. Alumina as raw material in production of ceramic materials: the changes of alumina crystal structure by mechanical activation procedure. in Serbian Ceramic Society Conference “Advanced Ceramic and Application II – New frontiers in multifunctional material science and procession”, Book of Abstracts, Belgrade, Serbia (30.09-01.10.2013). 2013;:36. https://hdl.handle.net/21.15107/rcub_machinery_7564 .
Andrić, Ljubiša, Terzić, Anja, Pavlović, Ljubica, Aćimović, Zagorka, Pavlović, Marko, "Alumina as raw material in production of ceramic materials: the changes of alumina crystal structure by mechanical activation procedure" in Serbian Ceramic Society Conference “Advanced Ceramic and Application II – New frontiers in multifunctional material science and procession”, Book of Abstracts, Belgrade, Serbia (30.09-01.10.2013) (2013):36, https://hdl.handle.net/21.15107/rcub_machinery_7564 .