prikaz prve stranice dokumenta Određivanje parametara kristalne rešetke La1-xSrxMnO3 Rietveldovom metodom utočnjavanja
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master's thesis
Određivanje parametara kristalne rešetke La1-xSrxMnO3 Rietveldovom metodom utočnjavanja
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. urn:nbn:hr:149:112801
Raspor, Marija
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

Cite this document

Raspor, M. (2021). Određivanje parametara kristalne rešetke La1-xSrxMnO3 Rietveldovom metodom utočnjavanja (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:112801

Raspor, Marija. "Određivanje parametara kristalne rešetke La1-xSrxMnO3 Rietveldovom metodom utočnjavanja." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:112801

Raspor, Marija. "Određivanje parametara kristalne rešetke La1-xSrxMnO3 Rietveldovom metodom utočnjavanja." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:112801

Raspor, M. (2021). 'Određivanje parametara kristalne rešetke La1-xSrxMnO3 Rietveldovom metodom utočnjavanja', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 23 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:112801

Raspor M. Određivanje parametara kristalne rešetke La1-xSrxMnO3 Rietveldovom metodom utočnjavanja [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2021 [cited 2024 November 23] Available at: https://urn.nsk.hr/urn:nbn:hr:149:112801

M. Raspor, "Određivanje parametara kristalne rešetke La1-xSrxMnO3 Rietveldovom metodom utočnjavanja", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:149:112801

Metadata
TitleOdređivanje parametara kristalne rešetke La1-xSrxMnO3 Rietveldovom metodom utočnjavanja
Title (english)Determination of La1-xSrxMnO3 crystal lattice parameters by Rietveld refinement
AuthorMarija Raspor
MentorJelena Macan (mentor)
Committee memberJelena Macan (predsjednik povjerenstva)
Committee memberMarica Ivanković (član povjerenstva)
Committee memberAnamarija Rogina (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2021-07-07, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Cilj ovog rada bio je odrediti parametre kristalne rešetke stroncijem dopiranih lantanovih manganita (La1-xSrxMnO3) Rietveldovom metodom utočnjavanja te usporediti uspješnost utočnjavanja korištenjem tri različita modela. Uzorci La1-xSrxMnO3 (x = 0, 0,1, 0,2, 0,3 i 0,5) pripremljeni su postupkom koprecipitacije nakon čega su karakterizirani rendgenskom difrakcijskom analizom (XRD). Eksperimentalno dobiveni podaci su utočnjavani s teorijskim Pseudo Voigt, Triple Pseudo Voigt te Thompson-Cox Pseudo Voigt modelima u softverskom paketu FullProf. Najbolje slaganje modela i eksperimentalnih podataka dobiveno je za Pseudo Voigt i Thompson-Cox Pseudo Voigt model. Triple Pseudo Voigt model dao je najlošije slaganje s eksperimentalnim podacima zbog prevelikog broja parametara koje model koristi za utočnjavanje zbog čega „zaluta“ u lokalne minimume.
Abstract (english)
The aim of this research was to determine the crystal lattice parameters of strontium doped lanthanum manganites (La1-xSrxMnO3) by the Rietveld refinement method using three different methods. The La1-xSrxMnO3 samples (x = 0, 0.1, 0.2, 0.3, 0.5) were prepared by the coprecipitation procedure, after which they were characterized by X-ray diffraction analysis (XRD). The experimentally obtained data were refined with theoretical Pseudo Voigt, Triple Pseudo Voigt and Thompson-Cox Pseudo Voigt models in the FullProf suite. The best refinement was achieved using Pseudo Voigt and Thompson-Cox Pseudo Voigt models. The Triple Pseudo Voigt model has shown the worst match with the experimental data due to the excessive number of parameters that the function uses for refinement, which makes it "stray" into the local minima.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:112801
ProjectNumber: IP-2018-01-5246
Title: Nanokompoziti s perovskitima za fotovoltaike, fotokatalizu i senzoriku
Acronym: NanoPeroPhotoSens
Leader: Andreja Gajović
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: IP
Study programmeTitle: Materials Science and Engineering - Graduate study
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
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Created on2023-04-06 13:05:25