Effects of mechanical activation of colemanite (Ca2B6O11•5H2O) on its thermal transformations

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dc.authoridErdemoğlu, Murat/0000-0003-2922-7965
dc.authorwosidUYSAL, TURAN/AAM-1634-2021
dc.authorwosidmutlu, hikmet serdar/AAD-9426-2021
dc.authorwosidErdemoğlu, Murat/AAA-9964-2020
dc.contributor.authorUysal, Turan
dc.contributor.authorMutlu, H. Serdar
dc.contributor.authorErdemoglu, Murat
dc.date.accessioned2024-08-04T20:41:45Z
dc.date.available2024-08-04T20:41:45Z
dc.date.issued2016
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIn this study, effects of mechanical activation on the thermal characteristics of colemanite (Ca2B6O11 center dot 5H(2)O) were examined with respect to its decrepitation behavior observed during the heating processes. Mechanical activation was achieved by milling (up to 150 min) in a planetary ball mill using tungsten carbide milling media. Crystallinity of the milled colemanite samples was determined by performing X-ray powder diffraction analysis. In this manner, milling conditions at which crystalline colemanite transforms to amorphous structure were obtained. Thermal gravimetric (TG) analyses together with differential thermal (DTA) and differential thermogravimetric (DTG) analysis were performed to determine how prolonged milling affects the thermal behavior of colemanite. It was found by examining the DTA data that intensive milling gives rise to removal of the crystal water from colemanite at low temperatures, which can be attributed to mechanical activation. DTG analysis revealed that mechanical activation decreases the rate of water removal from colemanite structure throughout the heating. It was suggested that mechanical activation eliminates the decrepitation almost completely, so that there is no need for pre-calcining operation which is generally required before manufacturing the colemanite-based high temperature materials. (C) 2016 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipInonu University (BAPB Project) [2011/108]en_US
dc.description.sponsorshipValuable support of Eti Mine Works, Bigadic Boron Works Balikesir Turkey for providing colemanite crystal sample used in the study and its chemical content is greatly appreciated. Financial support of Inonu University (BAPB Project Number: 2011/108) is gratefully acknowledged. Authors would like to thank Dr. S. Bagel for his analytical comments on the oxide analysis by XRF method, and M. Sener, Y. Eroglu, and S. Yazici for their supportive efforts in the laboratory.en_US
dc.identifier.doi10.1016/j.minpro.2016.04.006
dc.identifier.endpage58en_US
dc.identifier.issn0301-7516
dc.identifier.issn1879-3525
dc.identifier.scopus2-s2.0-84965081690en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage51en_US
dc.identifier.urihttps://doi.org/10.1016/j.minpro.2016.04.006
dc.identifier.urihttps://hdl.handle.net/11616/97302
dc.identifier.volume151en_US
dc.identifier.wosWOS:000377927500006en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofInternational Journal of Mineral Processingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectColemaniteen_US
dc.subjectThermal transformationsen_US
dc.subjectDecrepitationen_US
dc.subjectMechanical activationen_US
dc.titleEffects of mechanical activation of colemanite (Ca2B6O11•5H2O) on its thermal transformationsen_US
dc.typeArticleen_US

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