Functional Coatings Based on Preceramic Polymers1 . Issue 5 (11th March 2016)

• Record Type: Journal Article
• Authors: Barroso, Gilvan; Kraus, Tobias; Degenhardt, Ulrich; Scheffler, Michael; Motz, Günter
• Other Names: Leyens Christoph guestEditor.; Schlieter Antje guestEditor.
• Is Part Of: Advanced engineering materials. Volume 18:Issue 5(2016:May)
• Page Start: 746
• Page End: 753
• Publication Date: 2016-03-11
• Subjects: Materials -- Periodicals; 620.11
• DOI: 10.1002/adem.201500600
• Languages: English
• ISSNs: 1438-1656

Abstract

Abstract : Polymer‐derived ceramic (PDC) processing represents a versatile complement for the preparation of ceramic coatings. Filler‐loaded preceramic polymer layers can be deposited by methods such as dip coating even on substrates with a complex geometry, and subsequent thermal processing results in the formation of ceramic coatings. This specific polymer‐to‐ceramic processing route allows to tailor the coating's characteristics, e.g., surface‐structured coatings, thermal barrier coatings, and coatings for tribological applications. As coating systems polysilazanes and polysilsesquioxanes were combined in different approaches with PDC spheres, hexagonal, and cubic boron nitride. Abstract : Functional ceramic coatings based on particle‐filled preceramic polymers are developed and applied to steel (left) and graphite (right) . The middle image presents polymer‐derived ceramic (PDC) spheres as fillers prepared by ultrasound‐assisted emulsification; they result in structured coatings.