| Revista: | Materials research |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312700 |
| ISSN: | 1516-1439 |
| Autores: | Osipov, Oleksandr Sergueevitch1 Skury, Ana Lucia Diegues Bobrovnitchii, Guerold Sergueevitch |
| Instituciones: | 1Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, Rio de Janeiro. Brasil |
| Año: | 2004 |
| Periodo: | Abr-Jun |
| Volumen: | 7 |
| Número: | 2 |
| Paginación: | 335-337 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | The work reported on here involved the development of several samples of "diamond-SiC" composite produced under sintering pressures of up to 9.0 GPa at temperatures of up to 1973 7K. The average size of the diamond micropowder crystals used was 40/28 µm. The sintering process was carried out in a 2500-ton hydraulic press equipped with an anvil-type high-pressure device having a toroidal work surface and a central concavity diameter of 20 mm. The microhardness and wear resistance of the samples were found to be dependent on the sintering pressure. The experimental results indicated that the maximum microhardness and minimum wear resistance coefficients of each compact were attained when the pressure applied during sintering exceeded 6.5 GPa. Based on the established values of pressure, this study served to identify the types of devices applicable for the manufacture of composite material inserts for a variety of rock drilling applications |
| Disciplinas: | Ingeniería |
| Palabras clave: | Ingeniería de materiales, Ingeniería mecánica, Carburo de silicio, Diamante, Sinterización, Dureza, Resistencia, Desgaste |
| Keyword: | Engineering, Materials engineering, Mechanical engineering, Silicon carbide, Diamond, Sintering, Hardness, Resistance, Wear |
| Texto completo: | Texto completo (Ver HTML) |
