Essays about: "zirconia"

Showing result 21 - 25 of 26 essays containing the word zirconia.

  1. 21. Fracture resistance of porcelain-veneered gold-alloy and zirconia molar crowns

    University essay from Malmö högskola/Odontologiska fakulteten (OD)

    Author : Eddie Nilsson; Marko Drazic; [2013]
    Keywords : Crowns; Dental Stress Analysis; Dental Veneers; Materials Testing; Metal Ceramic Alloys; Zirconium;

    Abstract : AbstraktSyfte:Studiens syfte var att utreda maxlasttoleransen mellan yttria-stabiliserad zirkoniumdioxid- (Y-TZP) och metallkeramiska- (MC) molarkronor med en ny design på in vitro belastningsformen. En stålkula användes för att utöva last på kusparna istället för i fissuren för att framställa en sprickbildning liknande den som ses kliniskt. READ MORE

  3. 22. Finding a path through a crystal. Theoretical modelling of ionic conductivity.

    University essay from Lunds universitet/Kemiska institutionen

    Author : Fredrik Ericson; [2013]
    Keywords : teoretisk kemi; Chemistry;

    Abstract : Ionic conductors have seen increased use over time. These are found in ion detectors, gas detectors and supercapacitors but finds special use in fuel cells and solar cells. Some ionic conductors are not only used as a conductor, but finds uses as insulators, ceramic blades or even as a diamond simulant. READ MORE

  4. 23. Translucent TZP ceramics prepared by sintering freeze-granulated nanopowders

    University essay from Institutionen för material- och miljökemi (MMK)

    Author : Wei Wei; [2012]
    Keywords : freeze granulated;

    Abstract : In order to obtain translucent tetragonal zirconia polycrystalline (TZP) ceramics, complete densification, and homogeneous microstructure free of agglomerates and residual pores are required. To achieve this goal, freeze granulation of the zirconia nanopowder was performed. READ MORE

  5. 24. Establishment of Relationships between Coating Microstructure and Thermal Conductivity in Thermal Barrier Coatings by Finite Element Modelling

    University essay from Institutionen för ingenjörsvetenskap

    Author : Mohit Gupta; [2010]
    Keywords : TBCs; yttria partially stabilized zirconia; heat transfer; microstructure; modelling; thermal conductivity; design;

    Abstract : Plasma sprayed Thermal Barrier Coating systems (TBCs) are commonly used for thermal protection of components in modern gas turbine application such as power generation, marine and aero engines. The material that is most commonly used in these applications is Yttria Partially Stabilized Zirconia (YPSZ) because of this ceramic’s favourable properties, such as low thermal conductivity, phase stability to high temperature, and good erosion resistance. READ MORE

  6. 25. Thermal Stability of Zr-Si-N Nanocomposite Hard Thin Films

    University essay from Nanostrukturerade material

    Author : Nai-Yuan Ku; [2010]
    Keywords : Zr-Si-N films; Nanocomposite hard coatings; Nanostructure; Magnetron sputtering; Hardness; Mechanical property; Thermal stability; Annealing; Transmission electron microscopy; X-ray diffraction; Nanoindentation; Elastic recoil detection analysis;

    Abstract : Mechanical property and thermal stability of Zr-Si-N films of varying silicon contents deposited on Al2O3 (0001) substrates are characterized. All films provided for characterization were deposited by reactive DC magnetron sputter deposition technique from elemental Zr and Si targets in a N2/Ar plasma at 800 oC. READ MORE