TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Janaćković, Đorđe
AU  - Kićević, Dušan
AU  - Ilić, Svetlana
AU  - Šaponjić, Aleksandra
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6468
AB  - Effect of methyl methacrylate (MMA) as a binder and heating treatment were investigated to improve green alumina compacts machinability. Properties of green compacts and their corresponding sintered samples prepared with and without MMA were compared. Investigation of green and sintered properties was performed on samples compacted at applied pressures up to 150 MPa. After pressing, samples with MMA were thermally treated at 115oC. The intention was to enhance the polymerization of MMA at a temperature a little higher than the glass transition temperature (Tg = 103°C) of poly (methyl methacrylate). Green compacts with MMA had higher green density values than those without MMA. Sintered samples with MMA had lower values of sintered density and higher values of total porosity; after sintering, relative linear shrinkage was around 15 % for the whole range of applied pressures. The possibility of easily machining the green compacts with MMA produces great possibilities for application in many fields.
AB  - Испитиван je утицај метил метакрилата (ММА) као везива као и утицај термичког третманана машинску обрадивост испресака од алумине. Упоређена су својства како код испресака од алумине припремљених са и без ММА тако и код њима одговарајућих синтерованих узорака. Испитивање особина испресака и синтерованих узоракаизведено је на узорцима који су испресовани на притисцима до 150 МРа. Након пресовања, узорци са ММА су термички третирани на 115о С са намером да ММА полимеризује на нешто вишој температури од температуре стакластог прелаза (Тg = 103°C) поли(метил метакрилата. Испресци са ММА имали су веће густине од испресака без ММА. Синтеровани узорци припремљени са ММА имали су ниже синтероване густине и већу укупну порозност, aнакон синтеровања, релативно линеарно скупљање је било око 15 % за цео опсег примењених притисака пресовања. Пробе машинске обрадљивости показале су да машинска обрада испресака са ММА има велике могућности за комерцијалну примену.
PB  - International Institute for the Science of Sintering (IISS)
T2  - Science of Sintering
T1  - The Effect of Acrylate on the Properties and Machinability of Alumina Ceramics
EP  - 113
IS  - 1
SP  - 103
VL  - 55
DO  - 10.2298/SOS2301103K
ER  - 

@article{
author = "Kokunešoski, Maja and Janaćković, Đorđe and Kićević, Dušan and Ilić, Svetlana and Šaponjić, Aleksandra",
year = "2023",
abstract = "Effect of methyl methacrylate (MMA) as a binder and heating treatment were investigated to improve green alumina compacts machinability. Properties of green compacts and their corresponding sintered samples prepared with and without MMA were compared. Investigation of green and sintered properties was performed on samples compacted at applied pressures up to 150 MPa. After pressing, samples with MMA were thermally treated at 115oC. The intention was to enhance the polymerization of MMA at a temperature a little higher than the glass transition temperature (Tg = 103°C) of poly (methyl methacrylate). Green compacts with MMA had higher green density values than those without MMA. Sintered samples with MMA had lower values of sintered density and higher values of total porosity; after sintering, relative linear shrinkage was around 15 % for the whole range of applied pressures. The possibility of easily machining the green compacts with MMA produces great possibilities for application in many fields., Испитиван je утицај метил метакрилата (ММА) као везива као и утицај термичког третманана машинску обрадивост испресака од алумине. Упоређена су својства како код испресака од алумине припремљених са и без ММА тако и код њима одговарајућих синтерованих узорака. Испитивање особина испресака и синтерованих узоракаизведено је на узорцима који су испресовани на притисцима до 150 МРа. Након пресовања, узорци са ММА су термички третирани на 115о С са намером да ММА полимеризује на нешто вишој температури од температуре стакластог прелаза (Тg = 103°C) поли(метил метакрилата. Испресци са ММА имали су веће густине од испресака без ММА. Синтеровани узорци припремљени са ММА имали су ниже синтероване густине и већу укупну порозност, aнакон синтеровања, релативно линеарно скупљање је било око 15 % за цео опсег примењених притисака пресовања. Пробе машинске обрадљивости показале су да машинска обрада испресака са ММА има велике могућности за комерцијалну примену.",
publisher = "International Institute for the Science of Sintering (IISS)",
journal = "Science of Sintering",
title = "The Effect of Acrylate on the Properties and Machinability of Alumina Ceramics",
pages = "113-103",
number = "1",
volume = "55",
doi = "10.2298/SOS2301103K"
}

Kokunešoski, M., Janaćković, Đ., Kićević, D., Ilić, S.,& Šaponjić, A.. (2023). The Effect of Acrylate on the Properties and Machinability of Alumina Ceramics. in Science of Sintering
International Institute for the Science of Sintering (IISS)., 55(1), 103-113.
https://doi.org/10.2298/SOS2301103K

Kokunešoski M, Janaćković Đ, Kićević D, Ilić S, Šaponjić A. The Effect of Acrylate on the Properties and Machinability of Alumina Ceramics. in Science of Sintering. 2023;55(1):103-113.
doi:10.2298/SOS2301103K .

Kokunešoski, Maja, Janaćković, Đorđe, Kićević, Dušan, Ilić, Svetlana, Šaponjić, Aleksandra, "The Effect of Acrylate on the Properties and Machinability of Alumina Ceramics" in Science of Sintering, 55, no. 1 (2023):103-113,
https://doi.org/10.2298/SOS2301103K . .

TY  - JOUR
AU  - Katnić, Đurica
AU  - Marinović-Cincović, Milena
AU  - Porobić, Slavica J.
AU  - Vujčić, Ivica
AU  - Šaponjić, Aleksandra
AU  - Sikirić, Biljana
AU  - Živojinović, Dragana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5107
AB  - Redirecting waste biomass back into the economy can reduce their burden on the environment. The use of waste biomass for the production of fuels, value-added materials or natural fillers has significant economic and environmental benefits. Physico-chemical characterization of waste biomass (plum pomace and fig pomace) was done by proximate, elemental, biochemical analysis, FTIR and SEM analysis. The calorific value of both biomasses can be compared with the calorific value of lignite, which rises their potential use as a solid biofuel. The combustion behavior of biomass was investigated by thermal analysis techniques. Based on thermal degradation experiments performed at four heating rates a kinetic analysis of the biomass decomposition process was accomplished. The kinetic study was done using Kissinger method, Ozawa method, Flynn-Wall-Ozawa (FWO) method, Starink method, and Kissinger-Akahira-Sunose (KAS) method. The value of activation energy obtained by different kinetic methods was ∼210 kJ/mol for plum pomace and ∼162 kJ/mol for fig pomace. Estimated activation energy values were used to calculate thermodynamic parameters. In addition to the fact that the obtained results can serve as a useful reference for the design of pyrolysis reactors, this research has ecological significance because it solves the problem of solid waste disposal.
PB  - Elsevier Ltd
T2  - Journal of Cleaner Production
T1  - Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass
SP  - 131637
VL  - 352
DO  - 10.1016/j.jclepro.2022.131637
ER  - 

@article{
author = "Katnić, Đurica and Marinović-Cincović, Milena and Porobić, Slavica J. and Vujčić, Ivica and Šaponjić, Aleksandra and Sikirić, Biljana and Živojinović, Dragana",
year = "2022",
abstract = "Redirecting waste biomass back into the economy can reduce their burden on the environment. The use of waste biomass for the production of fuels, value-added materials or natural fillers has significant economic and environmental benefits. Physico-chemical characterization of waste biomass (plum pomace and fig pomace) was done by proximate, elemental, biochemical analysis, FTIR and SEM analysis. The calorific value of both biomasses can be compared with the calorific value of lignite, which rises their potential use as a solid biofuel. The combustion behavior of biomass was investigated by thermal analysis techniques. Based on thermal degradation experiments performed at four heating rates a kinetic analysis of the biomass decomposition process was accomplished. The kinetic study was done using Kissinger method, Ozawa method, Flynn-Wall-Ozawa (FWO) method, Starink method, and Kissinger-Akahira-Sunose (KAS) method. The value of activation energy obtained by different kinetic methods was ∼210 kJ/mol for plum pomace and ∼162 kJ/mol for fig pomace. Estimated activation energy values were used to calculate thermodynamic parameters. In addition to the fact that the obtained results can serve as a useful reference for the design of pyrolysis reactors, this research has ecological significance because it solves the problem of solid waste disposal.",
publisher = "Elsevier Ltd",
journal = "Journal of Cleaner Production",
title = "Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass",
pages = "131637",
volume = "352",
doi = "10.1016/j.jclepro.2022.131637"
}

Katnić, Đ., Marinović-Cincović, M., Porobić, S. J., Vujčić, I., Šaponjić, A., Sikirić, B.,& Živojinović, D.. (2022). Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass. in Journal of Cleaner Production
Elsevier Ltd., 352, 131637.
https://doi.org/10.1016/j.jclepro.2022.131637

Katnić Đ, Marinović-Cincović M, Porobić SJ, Vujčić I, Šaponjić A, Sikirić B, Živojinović D. Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass. in Journal of Cleaner Production. 2022;352:131637.
doi:10.1016/j.jclepro.2022.131637 .

Katnić, Đurica, Marinović-Cincović, Milena, Porobić, Slavica J., Vujčić, Ivica, Šaponjić, Aleksandra, Sikirić, Biljana, Živojinović, Dragana, "Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass" in Journal of Cleaner Production, 352 (2022):131637,
https://doi.org/10.1016/j.jclepro.2022.131637 . .