Influence of carbon fiber pre-treatments on interlaminar shear strength and fracture behavior of C/C composites

Wanchang Sun, Hejun Li, Qiangang Fu, Shouyang Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

PAN-carbon fibers were pretreated using three methods. 2D-C/C composites were fabricated by a rapid chemical liquid-vaporized infiltration (CLVI) processing. Surface morphologies of carbon fiber pretreated and fracture micrographs of 2D-C/C composites were observed by scanning electron microscopy (SEM) and high resolution transmission electron microscope (HRTEM). The interlaminar shear strength(ILSS) of C/C composites was tested. The influences of carbon fiber surface pretreatments on ILSS and fracture behaviors of C/C composites were analyzed. The experimental results indicated that the C/C composite with carbon fiber coated CVI pyrocarbon possesses both higher flexural strength and interlaminar shear strength than composites with other fiber pretreatments. The fractographes revealed the differences in the mechanical behavior depending on the interface strength of fiber/matrix.

Original languageEnglish
Title of host publicationAdvanced Structural Materials
PublisherTrans Tech Publications Ltd
Pages482-487
Number of pages6
ISBN (Print)9783037851678
DOIs
StatePublished - 2011
Externally publishedYes

Publication series

NameMaterials Science Forum
Volume686
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Keywords

  • Carbon/carbon composites
  • Fiber surface pre-treatment
  • Interface
  • Mechanical behavior
  • Rapid densification

Fingerprint

Dive into the research topics of 'Influence of carbon fiber pre-treatments on interlaminar shear strength and fracture behavior of C/C composites'. Together they form a unique fingerprint.

Cite this