| Journal: | Materials research |
| Database: | PERIÓDICA |
| System number: | 000312901 |
| ISSN: | 1516-1439 |
| Authors: | Rocha, Claudio V1 Costa, Celio A |
| Institutions: | 1Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Rio de Janeiro. Brasil |
| Year: | 2006 |
| Season: | Abr-Jun |
| Volumen: | 9 |
| Number: | 2 |
| Pages: | 143-146 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | This present work evaluates the influence of microstructure on the fracture toughness of two types of silicon nitride. The two microstructural types of silicon nitride were processed using the gas pressure sintering (GPS) and hot pressing (HP) pathways. The fracture toughness was measured using the Single Edge V-Notch Beam (SEVNB) and Chevron Notch Beam (CNB) methods. The results from both methods for the two forms were in close agreement (with a maximum variation of 5.8%); the KIc of the material processed by HP was 35% higher than that of GPS and the grain length had a direct influence on the fracture toughness |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de materiales, Ingeniería industrial, Cerámica, Nitruro de silicio, Fractura, Alta temperatura, Sinterización |
| Keyword: | Engineering, Industrial engineering, Materials engineering, Ceramics, Silicon nitride, Fracture, High temperature, Sintering |
| Full text: | Texto completo (Ver HTML) |
