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undergraduate thesis
Utjecaj veličine abrazivnih čestica na intenzitet abrazijskog trošenja aluminij-oksidne keramike
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. urn:nbn:hr:235:668070
Vargek, Stjepan
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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Vargek, S. (2020). Utjecaj veličine abrazivnih čestica na intenzitet abrazijskog trošenja aluminij-oksidne keramike (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:668070

Vargek, Stjepan. "Utjecaj veličine abrazivnih čestica na intenzitet abrazijskog trošenja aluminij-oksidne keramike." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. https://urn.nsk.hr/urn:nbn:hr:235:668070

Vargek, Stjepan. "Utjecaj veličine abrazivnih čestica na intenzitet abrazijskog trošenja aluminij-oksidne keramike." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. https://urn.nsk.hr/urn:nbn:hr:235:668070

Vargek, S. (2020). 'Utjecaj veličine abrazivnih čestica na intenzitet abrazijskog trošenja aluminij-oksidne keramike', Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 17 November 2024, https://urn.nsk.hr/urn:nbn:hr:235:668070

Vargek S. Utjecaj veličine abrazivnih čestica na intenzitet abrazijskog trošenja aluminij-oksidne keramike [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2020 [cited 2024 November 17] Available at: https://urn.nsk.hr/urn:nbn:hr:235:668070

S. Vargek, "Utjecaj veličine abrazivnih čestica na intenzitet abrazijskog trošenja aluminij-oksidne keramike", Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:235:668070

Metadata
TitleUtjecaj veličine abrazivnih čestica na intenzitet abrazijskog trošenja aluminij-oksidne keramike
Title (english)Effect of abrasive grain size on the abrasive wear rate of alumina cermics
AuthorStjepan Vargek
MentorVera Rede (mentor)
Committee memberVera Rede (predsjednik povjerenstva)
Committee memberDragutin Lisjak (član povjerenstva)
Committee memberMiro Hegedić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2020-02-28, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Basic Technical Sciences
Materials
Abstract
U ovom radu ispitan je utjecaj veličine abrazivnih čestica na intenzitet abrazijskog trošenja aluminij-oksidne keramike dobivene postupkom hladnog izostatičkog prešanja i naknadnim sinteriranjem. Otpornost na abrazijsko trošenje ispitana je s različitim veličinama abrazivnih zrna, a na temelju dobivenih rezultata određena je i kritična veličina abrazivnog zrna. Također je izmjerena mikrotvrdoća te je analizirana mikrostruktura aluminij-oksidne keramike. Izmjerena mikrotvrdoća iznosila je 1810 HV1. Gustoća keramičkih uzoraka iznosila je 3,843 g/cm3, a poroznost 3,588%. Trošenjem na Taber abraderu s različitim granulacijama brusnog papira dobiveni su rezultati koji su ukazivali na pojavnost kritične veličine abrazivnog zrna, čija je vrijednost između 46,2 μm i 68 μm. Intenzitet trošenja linearno raste s porastom abrazivnih čestica do kritične veličine abrazivnog zrna, a s daljnjim porastom abrazivnih čestica, intenzitet trošenja opada.
Abstract (english)
In this paper, the effect of abrasive particle size on the abrasive wear intensity for aluminumoxide ceramics obtained by cold isostatic pressing and subsequent sintering was examined. The abrasion resistance was tested with different sizes of abrasive grains, and based on the results obtained, the critical size of the abrasive grain was determined. The microhardness was also measured and the microstructure of aluminum oxide ceramics was analyzed. The measured microhardness was 1810 HV1. The density of the ceramic samples was 3.843 g / cm3 and the porosity was 3.588%. Wear testing on a Taber abrader with different sandpaper granulations yielded results that indicated the occurrence of a critical abrasive grain size of between 46.2 µm and 68 µm. The wear intensity increases linearly with the increase of the abrasive particles to the critical size of the abrasive grain, and with the continued increase of the abrasive particles, the wear intensity decreases.
Keywords
Languagecroatian
URN:NBNurn:nbn:hr:235:668070
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2020-02-27 07:59:50