Influence of porosity on the apparent interlaminar shear strength of pitch-based unidirectional C–C composites

Changes in the open porosity, bulk density and void structure through five steps of densification by coal tar pitch impregnation and recarbonization, were studied with four different unidirectional C–C composites. The changes produced in the composite microstructure were related to the apparent interlaminar shear strength and the failure behaviour of the composites. The strength increases with the number of densification steps as well as the brittle character of the failure. Relationships between microstructure and brittle behaviour of composites were investigated.

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Bibliographic Details
Main Authors: Casal Banciella, Enrique, Granda Ferreira, Marcos, Bermejo Mayoral, Jenaro, Bonhomme, J., Menéndez López, Rosa María
Other Authors: Comisión Interministerial de Ciencia y Tecnología, CICYT (España)
Format: artículo biblioteca
Language:English
Published: Elsevier 2001
Subjects:Coal tar pitch, Carbon–carbon composites, Impregnation, Microstructure, Mechanical properties,
Online Access:http://hdl.handle.net/10261/223400
http://dx.doi.org/10.13039/501100007273
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