English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/13859
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 3 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Non-destructive characterisation of alumina/aluminium titanate composites using a micromechanical model and ultrasonic determinations: Part II. Evaluation of microcracking

AutorHernández, M. G.; Bueno, Salvador; Sánchez Martín, Teresa; Anaya Velayos, José Javier; Baudín de la Lastra, Carmen
Palabras claveComposites
Al2O3
Al2TiO5
Ultrasounds
Microstructure
Fecha de publicaciónene-2008
EditorElsevier
CitaciónCeramics International 34(1): 189-195 (2008)
ResumenA method for non-destructive detection of microcracks in ceramic composites is described. The method involves the combination of ultrasound characterisation with the application of a three-phase micromechanical model, which considers cracks and pores as void constituents. Four alumina-aluminium titanate materials with different levels of microcracking, from no cracks (monophase alumina) to severely cracked (alumina + 40 vol.% of aluminium titanate) including an alumina + 10 vol.% aluminium titanate material with incipient microcracking have been developed to test the validity of the method. Specimens have been fabricated by colloidal processing and the longitudinal and transverse ultrasound velocities have been determined by the ultrasonic pulse-echo and transmission ultrasound-immersion techniques, employing a digital signal processing. It has been demonstrated that it is possible to differentiate between pores and microcracks, both modelled as void constituents, in terms of the aspect ratio.
Descripción7 pages, 7 figures, 3 tables.-- Available online Nov 7, 2006.
Versión del editorhttp://dx.doi.org/10.1016/j.ceramint.2006.09.007
URIhttp://hdl.handle.net/10261/13859
DOI10.1016/j.ceramint.2006.09.007
ISSN0272-8842
Aparece en las colecciones: (ICV) Artículos
(IAI) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.