| Revista: | Materials research |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312507 |
| ISSN: | 1516-1439 |
| Autores: | López Esteban, S1 Bartolomé, J.F Pecharromán, C Castanho, S.R.H. Mello2 Moya, J.S |
| Instituciones: | 1Consejo Superior de Investigaciones Científicas, Instituto de Ciencia de Materiales de Madrid, Madrid. España 2Comissao Nacional de Energia Nuclear, Instituto de Pesquisas Energeticas e Nucleares, Sao Paulo. Brasil |
| Año: | 2001 |
| Periodo: | Jul |
| Volumen: | 4 |
| Número: | 3 |
| Paginación: | 217-222 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | Zirconia/stainless steel composites have been prepared by a wet processing method with metal volume concentration ranging from 15% to 30%. The composites were characterized by electrical and mechanical measurements. The dependence of the electrical properties of these composites with the metal concentration presents a percolative behaviour with a metal-insulator transition, in addition to an increment of the capacity in the neighbourhood of a critical volume concentration. This value was found to be fc = 0.285, which is much higher than the theoretical value for randomly dispersed 3D composites (fc = 0.16). It has been found that the incorporation of stainless steel particles to zirconia matrix, increases the toughness and decreases both the hardness and the flexural strength. The enhancement of toughness is attributed to a crack deflection mechanism as a consequence of a weak ZrO2/stainless steel interface |
| Disciplinas: | Ingeniería |
| Palabras clave: | Ingeniería metalúrgica, Acero inoxidable, Materiales compuestos, Propiedades eléctricas, Propiedades mecánicas |
| Keyword: | Engineering, Metallurgical engineering, Stainless steel, Composite materials, Electrical properties, Mechanical properties |
| Texto completo: | Texto completo (Ver HTML) |
