prikaz prve stranice dokumenta Mikrostruktura kompozitne aluminij oksidne - cirkonij oksidne keramike oblikovane lijevanjem suspenzije
  Download
PDF 2.55 MB
undergraduate thesis
Mikrostruktura kompozitne aluminij oksidne - cirkonij oksidne keramike oblikovane lijevanjem suspenzije
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. urn:nbn:hr:235:449551
Udovičić, Domagoj
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

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

Cite this document

Udovičić, D. (2020). Mikrostruktura kompozitne aluminij oksidne - cirkonij oksidne keramike oblikovane lijevanjem suspenzije (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:449551

Udovičić, Domagoj. "Mikrostruktura kompozitne aluminij oksidne - cirkonij oksidne keramike oblikovane lijevanjem suspenzije." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. https://urn.nsk.hr/urn:nbn:hr:235:449551

Udovičić, Domagoj. "Mikrostruktura kompozitne aluminij oksidne - cirkonij oksidne keramike oblikovane lijevanjem suspenzije." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. https://urn.nsk.hr/urn:nbn:hr:235:449551

Udovičić, D. (2020). 'Mikrostruktura kompozitne aluminij oksidne - cirkonij oksidne keramike oblikovane lijevanjem suspenzije', Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 14 November 2024, https://urn.nsk.hr/urn:nbn:hr:235:449551

Udovičić D. Mikrostruktura kompozitne aluminij oksidne - cirkonij oksidne keramike oblikovane lijevanjem suspenzije [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2020 [cited 2024 November 14] Available at: https://urn.nsk.hr/urn:nbn:hr:235:449551

D. Udovičić, "Mikrostruktura kompozitne aluminij oksidne - cirkonij oksidne keramike oblikovane lijevanjem suspenzije", Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:235:449551

Metadata
TitleMikrostruktura kompozitne aluminij oksidne - cirkonij oksidne keramike oblikovane lijevanjem suspenzije
Title (english)Microstructure of slip cast alumina - zirconia composite ceramics
AuthorDomagoj Udovičić
MentorKrešimir Grilec (mentor)
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
Abstract
U ovom radu istražena su svojstva i mikrostruktura kompozitne aluminij oksidne - cirkonij oksidne keramike dobivene postupkom lijevanja suspenzija. Keramički kompoziti postaju sve šire upotrebljivi materijali zbog svojih povoljnih svojstava. Jedan od bitnijih predstavnika keramičkih kompozita je upravo Al2O3 - ZrO2. Dodavanjem cirkonijeva oksida aluminijevom oksidu povećava se lomna žilavost jer je Al2O3 izrazito krhak. U radu se zaključuje da se korištenjem kompozitnih keramičkih materijala mogu dobiti povoljnija svojstva u odnosu na monolitne keramičke materijale. Pripravljene se četiri suspenzije različitog udjela Al2O3 i ZrO2: (i) čisti Al2O3, (ii) 99%Al2O3 + 1%ZrO2, (iii) 95%Al2O3 + 5%ZrO2, (iiii) 90%Al2O3 + 10%ZrO2. Suspenzije su najprije homogenizirane u planetarnom kugličnom mlinu da budu što bolje dispergirane, a zatim su tretirane u ultrazvučnoj kupelji. Nakon toga provode se reološka mjerenja na rotacijskom viskozimetru, te lijevanje suspenzija u gipsane kalupe. Potom slijedi sinteriranje, te konačno slijedi mjerenje gustoće i analiza mikrostrukture pomoću pretražnog elektronskog mikroskopa.
Abstract (english)
In this thesis properties and microstructure of composite aluminium oxide - zirconium oxide ceramics obtained by slip casting is described. Ceramic composites are becoming more widely used materials due to their favorable properties. Al2O3 - ZrO2 is one of the most significant representatives of ceramic composites. With addition of zirconium oxide to aluminium oxide, fracture toughness is increased because Al2O3 is fragile. It is concluded that by using composite cheramic materials we can gain more favorable properties in regard to monolithic ceramic materials. Four groups of suspensions were prepared with different amounts of aluminium and zirconium oxide: (i) 100%Al2O3, (ii) 99%Al2O3 + 1%ZrO2, (iii) 95%Al2O3 + 5%ZrO2, (iiii) 90%Al2O3 + 10%ZrO2. Firstly, suspensions were homogenized in a planetary ball mill to be better dispersed, then they are treated in an ultrasonic bath. After that, rheological measurements are conducted on rotational viscometer, as well as slip casting in gypsum molds. This is followed by sintering, and finally density measurements, as well as microstructure analysis by using scanning microscope are performed.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:449551
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
Terms of useLicence In copyright icon
Created on2020-02-21 11:08:19