Influence of Ti3SiC2 Fiber Coating on Interface and Matrix Cracking in an SiC Fiber‐Reinforced Polymer‐Derived Ceramic. Issue 8 (12th June 2015)

• Record Type: Journal Article
• Authors: Filbert‐Demut, Ina; Bei, Guoping; Höschen, Till; Riesch, Johann; Travitzky, Nahum; Greil, Peter
• Is Part Of: Advanced engineering materials. Volume 17:Issue 8(2015:Aug.)
• Page Start: 1142
• Page End: 1148
• Publication Date: 2015-06-12
• Subjects: Materials -- Periodicals; 620.11
• DOI: 10.1002/adem.201500192
• Languages: English
• ISSNs: 1438-1656

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="adem201500192-sec-0001" sec-type="section"> <p>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.</p> </sec> </abstract>