Szczegóły publikacji
Opis bibliograficzny
Indentation fracture toughness of $Al_{2}O_{3}$ + GPLs and $Si_{3}N_{4}$ + GPLs systems / Richard Sedlák, Alexandra Kovalčíková, Monika Tatarková, Paweł RUTKOWSKI, Ján Dusza // Diffusion and Defect Data – Solid State Data. Part A, Defect and Diffusion Forum ; ISSN 1012-0386. — 2016 — vol. 368, s. 166–169. — Bibliogr. s. 169, Abstr. — Publikacja dostępna online od: 2016-07-05. — Local mechanical properties : 12th international conference : November 4–6, 2015, Liberec, Czech Republic
Autorzy (5)
- Sedlák Richard
- Kovalčíková Alexandra
- Tatarková Monika
- AGHRutkowski Paweł
- Dusza Ján
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 99288 |
|---|---|
| Data dodania do BaDAP | 2016-08-10 |
| Tekst źródłowy | URL |
| DOI | 10.4028/www.scientific.net/DDF.368.166 |
| Rok publikacji | 2016 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Diffusion and Defect Data. Solid State Data, Part A, Defect and Diffusion Forum |
Abstract
The influence of 1 wt.% and 2 wt.% of graphene platelets (GPLs) addition on indentation fracture toughness (IF) of Al2O3 and Si3N4 based composites has been investigated and compared to the monoliths. Ceramic composites reinforced with GPLs were prepared using hot-press processing technology. Microstructures were observed at fracture surfaces by scanning electron microscopy (SEM). Crack type identification was performed by gradually polishing of the indentation surface and mechanical properties of both systems were measured. Indentation fracture toughness was calculated by various methods and R-curves were prepared. The main activated toughening mechanisms, responsible for the increased fracture toughness are crack deflection, crack branching and crack bridging in the forms of graphene sheet pull-out or graphene necking.
