Influence of Ti3SiC2 Fiber Coating on Interface and Matrix Cracking in an SiC Fiber-Reinforced Polymer-Derived Ceramic

Ina Filbert-Demut, Guoping Bei, Till Höschen, Johann Riesch, Nahum Travitzky, Peter Greil

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The effect of Ti3SiC2 coatings on the interfacial properties of SiC-fiber reinforced FeSiCr/SiC-filled polymethylsilsesquioxane-derived ceramics was investigated. An electrophoretically deposited Ti3SiC2 coating was prepared on the fiber/matrix interface. Interfacial parameters such as frictional sliding stress and fracture energy were derived from fiber push-out tests and correlated to the thickness of the Ti3SiC2 layer. Compared to uncoated fibers, the Ti3SiC2 interlayer gives rise for a pronounced enhance of interface shear strength, coefficient of friction, and sliding strength but a reduced fracture energy. With increasing Ti3SiC2 coating thickness, thermal mismatch-induced residual compressive stresses at the fiber/matrix interface tend to decrease significantly.

Original languageEnglish
Pages (from-to)1142-1148
Number of pages7
JournalAdvanced Engineering Materials
Volume17
Issue number8
DOIs
Publication statusPublished - 1 Aug 2015

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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