Critical evaluation of indentation fracture toughness measurements with Vickers indenter on yttria-stabilized zirconia dental ceramics (CROSBI ID 237613)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Ćorić, Danko ; Majić Renjo, Marijana ; Žmak, Irena
engleski
Critical evaluation of indentation fracture toughness measurements with Vickers indenter on yttria-stabilized zirconia dental ceramics
The purpose of this study was to investigate and analyze fracture toughness (KIc) of yttria stabilized tetragonal zirconia (Y-TZP) dental ceramics by the Vickers indentation fracture test. In order to determine fracture toughness, the Vickers indenter was used under the load of 294.20 N (HV30). The cracks, which occur from the corners of a Vickers indentation, were measured and used for fracture toughness determination, through five mathematical models according to (I) Anstis, (II) Evans and Charles, (III) Tanaka, (IV) Niihara, Morena and Hasselman and (V) Lankford. Morphology of indentation cracking was determined by scanning electron microscope. The most adequate model for determination of fracture toughness (KIc) of yttria stabilized tetragonal zirconia dental ceramics by the Vickers indentation fracture test is Lankford model.
Zirconia, Yttria-stabilized zirconia ceramics ; Dental ceramics ; Fracture toughness ; Vickers indentation test
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Podaci o izdanju
48 (8)
2017.
767-772
objavljeno
0933-5137
10.1002/mawe.201700026