TY  - CONF
AU  - Omerasevic, Mia
AU  - Ružić, Jovana
AU  - Orlić, Jovana
AU  - Baščarević, Zvezdana
AU  - Savić-Biserčić, Marjetka
AU  - Matović, Ljiljana
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2981
AB  - Cesium aluminosilicate phases are of the great interest as possible hosts for Cs immobilization in radioactive waste management. Cs-exchanged form of Na, Ca-LTA type of zeolite (Cs-LTA) was prepared by standard procedure of ion exchange. In order to obtain pollucite this Cs-LTA zeolite was pressurless sintered and hot pressed at certain temperatures. XRD analyses were used to study structural changes of Cs-LTA before and after thermal treatments. Pressurless sintered sample recrystallized into pollucite phase after heat treatment at 1000 °C (3 h) (PLS1000) and hot pressed sample at 750 °C (3 h) using pressure of 35 MPa (HP750), indicating reduced temperature of 250 degrees. HP750 has higher density than PLS1000 which leads to higher value of compressive strength. The HP750 showed better resistance to Cs leaching than the PLS1000. Obtained results of HP750 sample indicate that these ceramic forms, based on pollucite phase, are promising for the permanent immobilization of Cs radionuclides.
PB  - Institute for Multidisciplinary Research, University of Belgrade
C3  - 4th Conference of The Serbian Society for Ceramic Materials
T1  - Transformation of Cs-LTA type of zeolite to pollucite phase using hot pressing method
EP  - 68
SP  - 68
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2981
ER  - 

@conference{
author = "Omerasevic, Mia and Ružić, Jovana and Orlić, Jovana and Baščarević, Zvezdana and Savić-Biserčić, Marjetka and Matović, Ljiljana",
year = "2017",
abstract = "Cesium aluminosilicate phases are of the great interest as possible hosts for Cs immobilization in radioactive waste management. Cs-exchanged form of Na, Ca-LTA type of zeolite (Cs-LTA) was prepared by standard procedure of ion exchange. In order to obtain pollucite this Cs-LTA zeolite was pressurless sintered and hot pressed at certain temperatures. XRD analyses were used to study structural changes of Cs-LTA before and after thermal treatments. Pressurless sintered sample recrystallized into pollucite phase after heat treatment at 1000 °C (3 h) (PLS1000) and hot pressed sample at 750 °C (3 h) using pressure of 35 MPa (HP750), indicating reduced temperature of 250 degrees. HP750 has higher density than PLS1000 which leads to higher value of compressive strength. The HP750 showed better resistance to Cs leaching than the PLS1000. Obtained results of HP750 sample indicate that these ceramic forms, based on pollucite phase, are promising for the permanent immobilization of Cs radionuclides.",
publisher = "Institute for Multidisciplinary Research, University of Belgrade",
journal = "4th Conference of The Serbian Society for Ceramic Materials",
title = "Transformation of Cs-LTA type of zeolite to pollucite phase using hot pressing method",
pages = "68-68",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2981"
}

Omerasevic, M., Ružić, J., Orlić, J., Baščarević, Z., Savić-Biserčić, M.,& Matović, L.. (2017). Transformation of Cs-LTA type of zeolite to pollucite phase using hot pressing method. in 4th Conference of The Serbian Society for Ceramic Materials
Institute for Multidisciplinary Research, University of Belgrade., 68-68.
https://hdl.handle.net/21.15107/rcub_rimsi_2981

Omerasevic M, Ružić J, Orlić J, Baščarević Z, Savić-Biserčić M, Matović L. Transformation of Cs-LTA type of zeolite to pollucite phase using hot pressing method. in 4th Conference of The Serbian Society for Ceramic Materials. 2017;:68-68.
https://hdl.handle.net/21.15107/rcub_rimsi_2981 .

Omerasevic, Mia, Ružić, Jovana, Orlić, Jovana, Baščarević, Zvezdana, Savić-Biserčić, Marjetka, Matović, Ljiljana, "Transformation of Cs-LTA type of zeolite to pollucite phase using hot pressing method" in 4th Conference of The Serbian Society for Ceramic Materials (2017):68-68,
https://hdl.handle.net/21.15107/rcub_rimsi_2981 .

TY  - CONF
AU  - Omerasevic, Mia
AU  - Lukić, Miodrag
AU  - Baščarević, Zvezdana
AU  - Orlić, Jovana
AU  - Mirković, Miljana
AU  - Savić-Biserčić, Marjetka
AU  - Matović, Ljiljana
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2984
AB  - Cesium aluminosilicate phases are of the great interest as possible host for Cs immobilization in radioactive waste management. The possibility to use zeolite as a host material for radioactive Cs immobilization was investigated. Cs-exchanged forms of clinoptilolite and 13X which were prepared by ion-exchange treatment were compacted. The powders compacts of exchanged zeolites were thermally treated at 1200 °C. The XRD analysis showed that Cs was successfully immobilized after heat treatment by formation of stable cesium-aluminosilicate ceramic forms. Thermal and mechanical properties of the sintered samples were investigated. From the perspective of these characteristics, Cs-exchanged zeolite (clinoptilolite and 13 X) can be considered as a potential material for safe waste disposal.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia
T1  - Safe trapping of Cs radionuclides in sintered matrix of zeolites
EP  - 45
SP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2984
ER  - 

@conference{
author = "Omerasevic, Mia and Lukić, Miodrag and Baščarević, Zvezdana and Orlić, Jovana and Mirković, Miljana and Savić-Biserčić, Marjetka and Matović, Ljiljana",
year = "2015",
abstract = "Cesium aluminosilicate phases are of the great interest as possible host for Cs immobilization in radioactive waste management. The possibility to use zeolite as a host material for radioactive Cs immobilization was investigated. Cs-exchanged forms of clinoptilolite and 13X which were prepared by ion-exchange treatment were compacted. The powders compacts of exchanged zeolites were thermally treated at 1200 °C. The XRD analysis showed that Cs was successfully immobilized after heat treatment by formation of stable cesium-aluminosilicate ceramic forms. Thermal and mechanical properties of the sintered samples were investigated. From the perspective of these characteristics, Cs-exchanged zeolite (clinoptilolite and 13 X) can be considered as a potential material for safe waste disposal.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia",
title = "Safe trapping of Cs radionuclides in sintered matrix of zeolites",
pages = "45-45",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2984"
}

Omerasevic, M., Lukić, M., Baščarević, Z., Orlić, J., Mirković, M., Savić-Biserčić, M.,& Matović, L.. (2015). Safe trapping of Cs radionuclides in sintered matrix of zeolites. in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 45-45.
https://hdl.handle.net/21.15107/rcub_rimsi_2984

Omerasevic M, Lukić M, Baščarević Z, Orlić J, Mirković M, Savić-Biserčić M, Matović L. Safe trapping of Cs radionuclides in sintered matrix of zeolites. in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia. 2015;:45-45.
https://hdl.handle.net/21.15107/rcub_rimsi_2984 .

Omerasevic, Mia, Lukić, Miodrag, Baščarević, Zvezdana, Orlić, Jovana, Mirković, Miljana, Savić-Biserčić, Marjetka, Matović, Ljiljana, "Safe trapping of Cs radionuclides in sintered matrix of zeolites" in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia (2015):45-45,
https://hdl.handle.net/21.15107/rcub_rimsi_2984 .