prikaz prve stranice dokumenta Utjecaj dvostrukog prevlačenja na mehanička i tribološka svojstva keramičkih prevlaka
  Download
PDF 11.22 MB
doctoral thesis
Utjecaj dvostrukog prevlačenja na mehanička i tribološka svojstva keramičkih prevlaka
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2007. urn:nbn:hr:235:309655
Jakovljević, Suzana
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

Jakovljević, S. (2007). Utjecaj dvostrukog prevlačenja na mehanička i tribološka svojstva keramičkih prevlaka (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:309655

Jakovljević, Suzana. "Utjecaj dvostrukog prevlačenja na mehanička i tribološka svojstva keramičkih prevlaka." Doctoral thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2007. https://urn.nsk.hr/urn:nbn:hr:235:309655

Jakovljević, Suzana. "Utjecaj dvostrukog prevlačenja na mehanička i tribološka svojstva keramičkih prevlaka." Doctoral thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2007. https://urn.nsk.hr/urn:nbn:hr:235:309655

Jakovljević, S. (2007). 'Utjecaj dvostrukog prevlačenja na mehanička i tribološka svojstva keramičkih prevlaka', Doctoral thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 17 November 2024, https://urn.nsk.hr/urn:nbn:hr:235:309655

Jakovljević S. Utjecaj dvostrukog prevlačenja na mehanička i tribološka svojstva keramičkih prevlaka [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2007 [cited 2024 November 17] Available at: https://urn.nsk.hr/urn:nbn:hr:235:309655

S. Jakovljević, "Utjecaj dvostrukog prevlačenja na mehanička i tribološka svojstva keramičkih prevlaka", Doctoral thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2007. Available at: https://urn.nsk.hr/urn:nbn:hr:235:309655

Metadata
TitleUtjecaj dvostrukog prevlačenja na mehanička i tribološka svojstva keramičkih prevlaka
Title (english)The influence of duplex coatings on tribomechanical properties of ceramic coating
AuthorSuzana Jakovljević
MentorVinko Ivušić (mentor)
Committee memberMladen Franz (predsjednik povjerenstva)
Committee memberVinko Ivušić (član povjerenstva)
Committee memberSlobodan Kralj (član povjerenstva)
Committee memberMladen Stupnišek (član povjerenstva)
Committee memberHrvoje Ivanković (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2007-06-05, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Universal decimal classification
(UDC)		53 - Physics
62 - Engineering. Technology in general
66 - Chemical technology. Chemical and related industries
Abstract
U radu su opisana dva postupka nanošenja slojeva prevlake. Prvi sloj Al2O3 nanesen je postupkom plazma naštrcavanja na nehrđajući čelik (EN X22CrMoV121). Nakon njega je nanesen sloj ZrO2 postupkom sol-gel, uranjanjem. Parametri koji su se mijenjali pri sol-gel postupku su: temperatura toplinske obradbe ZrO2 sloja (400ºC, 700ºC, 1000ºC) i broj uranjanja u otopinu kod temperature 700ºC (ponavljan 4 i 8 puta), kako bi se vidio njihov utjecaj na svojstva prevlake. Na prevlakama je provedena materijalografska analiza ispitivanih ZrO2 prevlaka, te je izmjerena debljina, tvrdoća i modul elastičnosti. Ispitivana je otpornost na brazdanje prevlaka, otpornost na abraziju te definiran koeficijent trenja metodom "Ball on disc". Rezultati provedenih laboratorijskih ispitivanja pokazali su da različite temperature toplinske obradbe, kojoj se podvrgavaju uzorci prevlaka nakon geliranja i sušenja i broj slojeva ZrO2, utječu na cjelovitost prevlake kao i na mehanička svojstva prevlaka. Nanošenje prevlake ZrO2 na Al2O3 prevlaku značajno smanjuje koeficijent trenja u odnosu na uzorke bez ZrO2 prevlake.
Abstract (english)
The dissertation describes a method of coating which combines two different methods of producing the layers. The first layer is Al2O3 produced by plasma spraying which was deposited on the stainless steel (EN X22CrMoV121) substrate. After that, ZrO2 layer was deposited on the Al2O3 coating by a sol-gel process using dip coating technique. During the sol-gel procedure, different annealing temperature of ZrO2 layer (400ºC, 700ºC, 1000ºC) and the numbers of dipping at temperature 700ºC (four and eight times) were performed in order to see their influence on properties of coatings. Materialographic analysis has been performed on studied ZrO2 coatings, and their thickness, hardness and Young modulus have been measured. The study includes resistance to grooving, resistance to abrasion and determining friction coefficient by "Ball on disc" method. The results of the performed laboratory studies have shown that the annealing temperature and number of layers of ZrO2 coating have influence on integrity of coating and on mechanical properties. ZrO2 coating on Al2O3 coating significantly decreased friction coefficient.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:309655
Study programmeTitle: Mechanical Engineering and Naval Architecture
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, područje tehničkih znanosti (doktor/doktorica znanosti, područje tehničkih znanosti)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-12-03 12:32:01