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dc.creatorOmerašević, Mia
dc.creatorMatović, Ljiljana
dc.creatorRužić, Jovana
dc.creatorGolubović, Željko
dc.creatorJovanović, Uroš D.
dc.creatorMentus, Slavko V.
dc.creatorDondur, Vera
dc.date.accessioned2018-03-01T16:50:44Z
dc.date.available2018-03-01T16:50:44Z
dc.date.issued2016
dc.identifier.issn0022-3115 (print)
dc.identifier.issn1873-4820 (electronic)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/1038
dc.description.abstractA simple one-step method with direct thermal conversion at lower temperatures for preparing a stabile Cs-aluminsilicate phase, known as pollucite, is presented. Cs-exchanged form of Na, Ca-LTA type of zeolite (Cs-LTA) was pressureless sintered and hot pressed at certain temperatures in order to obtain pollucite. XRD and FTIR analysis were used to study structural changes of Cs-LTA before and after thermal treatments. Pressureless sintered sample recrystallized into pollucite phase after heat treatment at 1000 degrees C (3 h) (PLS1000) and hot pressed sample at 750 degrees C (3 h) using pressure of 35 MPa (HP750), indicating reduced temperature of 250 degrees. SEM micrographs confirmed that 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. Base on these results one can conclude that hot pressing is the promising method for the permanent disposal of Cs radionuclides. (C) 2016 Elsevier B.V. All rights reserved.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45012/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172005/RS//
dc.rightsrestrictedAccessen
dc.sourceJournal of Nuclear Materialsen
dc.subjectCs disposalen
dc.subjectIon exchangeen
dc.subjectLTA zeoliteen
dc.subjectHot pressingen
dc.subjectPolluciteen
dc.subjectLeaching testsen
dc.titleSafe trapping of cesium into pollucite structure by hot-pressing methoden
dc.typearticleen
dcterms.abstractМентус, Славко; Омерашевић Миа; Дондур, Вера; Матовић Љиљана; Голубовиц, Зељко; Ружић Јована; Јовановић Урош;
dc.citation.volume474
dc.citation.spage35
dc.citation.epage44
dc.identifier.wos000374870100005
dc.identifier.doi10.1016/j.jnucmat.2016.03.006
dc.citation.rankM21a
dc.identifier.scopus2-s2.0-84961226108


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