Premium
Influence of Ti 3 SiC 2 Fiber Coating on Interface and Matrix Cracking in an SiC Fiber‐Reinforced Polymer‐Derived Ceramic
Author(s) -
FilbertDemut Ina,
Bei Guoping,
Höschen Till,
Riesch Johann,
Travitzky Nahum,
Greil Peter
Publication year - 2015
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201500192
Subject(s) - materials science , composite material , ceramic , coating , fiber , ceramic matrix composite , residual stress , cracking , shear strength (soil) , polymer , environmental science , soil science , soil water
The effect of Ti 3 SiC 2 coatings on the interfacial properties of SiC‐fiber reinforced FeSiCr/SiC‐filled polymethylsilsesquioxane‐derived ceramics was investigated. An electrophoretically deposited Ti 3 SiC 2 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 Ti 3 SiC 2 layer. Compared to uncoated fibers, the Ti 3 SiC 2 interlayer gives rise for a pronounced enhance of interface shear strength, coefficient of friction, and sliding strength but a reduced fracture energy. With increasing Ti 3 SiC 2 coating thickness, thermal mismatch‐induced residual compressive stresses at the fiber/matrix interface tend to decrease significantly.