Statistical Analysis of Vickers Indentation Fracture Toughness of Y-TZP Ceramics
| Autor: | Lidija Ćurković, Marijana Majić Renjo, Danko Ćorić |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Weibull modulus 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Y-TZP ceramics Indentation test Fracture toughness Weibull statistics Cracking Mechanics of Materials Indentation visual_art 0103 physical sciences visual_art.visual_art_medium Fracture (geology) Statistical analysis Ceramic Composite material 0210 nano-technology Weibull distribution |
| Zdroj: | Transactions of FAMENA Volume 41 Issue 2 |
| ISSN: | 1849-1391 1333-1124 |
| DOI: | 10.21278/tof.41201 |
| Popis: | The purpose of this study was to investigate and analyse the fracture toughness of yttria stabilized tetragonal zirconia polycrystal (Y-TZP) dental ceramics by means of the Vickers indentation technique. Fracture toughness was analysed under the following loads: 29.42 N, 49.03 N, 196.13 N, and 294.20 N. Cracks that had developed from the vertices of a Vickers indentation were measured and used for the determination of fracture toughness by using nine different models. It was found that fracture toughness depends on the indentation load, the morphology of indentation cracking, and the applied model of fracture resistance. The set of fracture toughness data was analysed using the two-parameter Weibull statistics. The Weibull modulus and the scale parameter were determined by the linear regression method. It was concluded that the Weibull distribution can describe the fracture toughness of Y-TZP ceramics properly. |
| Databáze: | OpenAIRE |
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