Temperature dependency on crystallinity and durability of mineral dolomite doped nanocrystalline hexagonal boron nitride

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dc.authorid0000-0003-0049-0161
dc.contributor.authorÖz, Muhammed
dc.date.accessioned2021-06-23T19:55:01Z
dc.date.available2021-06-23T19:55:01Z
dc.date.issued2020
dc.departmentBAİBÜ, Gerede Meslek Yüksekokulu, Kimya Ve Kimyasal İşleme Teknolojileri Bölümüen_US
dc.description.abstractIn this study, Nanocrystalline Hexagonal Boron Nitride powders (n-hBN) were synthesized from boron oxide and urea in the presence of very cheap mineral of dolomite (chemical compound of calcium magnesium carbonate, CaMg(CO3)(2)) followed by a catalytic annealing method and subsequent heat treatment under the ammonia reactive gas atmosphere at different reaction temperatures. Experiments were performed in a tube furnace with controlled atmosphere at 1000 degrees C, 1150 degrees C, 1300 degrees C and 1450 degrees C for 3 h as the weight ratios of 2.5/5.0/3.0 for B2O3/urea/dolomite. Furthermore, the powder n-hBN samples produced were experimentally investigated by means of Fourier Transform Infrared Spectroscopy (FTIR), X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Thermal Gravimetric Analysis (TGA) and High-Resolution Transmission Electron Microscopy (HR-TEM). Instrumental methods pointed out that the samples indicate the boron nitride formation founded on the phase (crystal structure) transition from irregular turbostratic nature to highly crystalline hexagonal morphology. Additionally, it was observed from the results of FTIR and XRD analyses that the optimum reaction temperature was found to be 1450 degrees C for the high crystalline n-hBN structure. In fact, the formation temperature for the boron nitride material was also found to be relatively lower such a value of 1000 degrees C as compared to that of O'Connor method (1600 degrees C). The TGA and DSC examinations also displayed that the thermal dependence of BN in the hexagonal crystal structure was obtained to be stable up to the temperature of 1200 degrees C in the open atmosphere, and the exothermic peak reaching its top point at 1160 degrees C took place at a temperature range of 1050-1300 degrees C.en_US
dc.identifier.doi10.1007/s10904-019-01338-2
dc.identifier.endpage766en_US
dc.identifier.issn1574-1443
dc.identifier.issn1574-1451
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85074162635en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage758en_US
dc.identifier.urihttps://doi.org/10.1007/s10904-019-01338-2
dc.identifier.urihttps://hdl.handle.net/20.500.12491/10706
dc.identifier.volume30en_US
dc.identifier.wosWOS:000489470100002en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorÖz, Muhammed
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal Of Inorganic And Organometallic Polymers And Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectNanocrystalline Hexagonal Boron Nitrideen_US
dc.subjectTemperature Dependencyen_US
dc.subjectDolomiteen_US
dc.subjectThermal Analysisen_US
dc.titleTemperature dependency on crystallinity and durability of mineral dolomite doped nanocrystalline hexagonal boron nitrideen_US
dc.typeArticleen_US

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