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master's thesis
Dvostupanjski i konvencionalno sinterirana keramika Al2O3 koja sadrži otpadni prah Al2O3: usporedba gustoće i mikrostrukture
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2019. urn:nbn:hr:235:313210
Bukovac, Luka
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

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Bukovac, L. (2019). Dvostupanjski i konvencionalno sinterirana keramika Al2O3 koja sadrži otpadni prah Al2O3: usporedba gustoće i mikrostrukture (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:313210

Bukovac, Luka. "Dvostupanjski i konvencionalno sinterirana keramika Al2O3 koja sadrži otpadni prah Al2O3: usporedba gustoće i mikrostrukture." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2019. https://urn.nsk.hr/urn:nbn:hr:235:313210

Bukovac, Luka. "Dvostupanjski i konvencionalno sinterirana keramika Al2O3 koja sadrži otpadni prah Al2O3: usporedba gustoće i mikrostrukture." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2019. https://urn.nsk.hr/urn:nbn:hr:235:313210

Bukovac, L. (2019). 'Dvostupanjski i konvencionalno sinterirana keramika Al2O3 koja sadrži otpadni prah Al2O3: usporedba gustoće i mikrostrukture', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 25 November 2024, https://urn.nsk.hr/urn:nbn:hr:235:313210

Bukovac L. Dvostupanjski i konvencionalno sinterirana keramika Al2O3 koja sadrži otpadni prah Al2O3: usporedba gustoće i mikrostrukture [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2019 [cited 2024 November 25] Available at: https://urn.nsk.hr/urn:nbn:hr:235:313210

L. Bukovac, "Dvostupanjski i konvencionalno sinterirana keramika Al2O3 koja sadrži otpadni prah Al2O3: usporedba gustoće i mikrostrukture", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:235:313210

Metadata
TitleDvostupanjski i konvencionalno sinterirana keramika Al2O3 koja sadrži otpadni prah Al2O3: usporedba gustoće i mikrostrukture
Title (english)Two-step and conventionally sintered aluminium oxide ceramics which contains waste aluminium oxide powder: a comparison of density and microstructure
AuthorLuka Bukovac
MentorIrena Žmak (mentor)
Committee memberBožidar Matijević (predsjednik povjerenstva)
Committee memberDarko Landek (član povjerenstva)
Committee memberIrena Žmak (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2019-12-05, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Basic Technical Sciences
Materials
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Rad prikazuje svojstva i primjenu aluminijeve oksidne keramike, te usporedbu njene gustoće i mikrostrukture primjenjujući dva različita postupka sinteriranja – jednostupanjsko (konvencionalno) i dvostupanjsko. Otpadni prah aluminijeve oksidne keramike nastaje tijekom zelene obrade sirovca i zahtjeva poseban način zbrinjavanja. Dodavanjem otpadnog praha, došlo je do porasta prividne viskoznosti Al2O3 vodene suspenzije. Na temelju provedenih mjerenja stvarne gustoće, izračuna relativne gustoće i analiziranja mikrostrukture, dobiveni su podaci i informacije o efikasnosti postupaka sinteriranja. U radu je primjenom dvostupanjskog sinteriranja postignuta jednoličnija mikrostruktura sitnijeg zrna, te veće vrijednosti stvarne i relativne gustoće u odnosu na konvencionalno sinterirane uzorke. Stoga postupak dvostupanjskog sinteriranja ima prednost u odnosu na konvencionalno sinteriranje.
Abstract (english)
This Master’s thesis describes the properties and applications of aluminum oxide ceramics, and compares its density and microstructure using two different sintering processes: one-step (conventional) and two-step sintering. Waste powder of aluminum oxide ceramics is generated during green processing of the raw material and requires special disposal. Addition of the waste powder resulted in an increase in the apparent viscosity of the Al2O3 aqueous suspension. On the basis of actual density measurements, relative density calculations and microstructure analysis, data and information on the efficiency of sintering processes were obtained. In the thesis, two-step sintering resulted in a more uniform microstructure of finer grains, and higher values of real and relative density compared to conventionally sintered samples. Therefore, the two-step sintering process has an advantage over conventional sintering.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:313210
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2019-12-04 08:44:30