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Micropatterned Ceramic Surfaces by Coating with Filled Preceramic Polymers
Author(s) -
Stern Edda,
Heyder Madeleine,
Scheffler Franziska
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03228.x
Subject(s) - materials science , siloxane , ceramic , polymer , coating , composite material , slurry , solvent , particle (ecology) , layer (electronics) , particle size , chemical engineering , organic chemistry , chemistry , engineering , geology , oceanography
Surface structures in micrometer scale were prepared on different substrates by a coating process using particle‐filled slurries based on a blend of preceramic polymers. Parameters like solvent fraction, substrate material, filler particle size, and layer thickness were varied. Demixing reactions of solvent and polymers led to surface structures with pores of 1–60 μm in diameter. The solubility parameters δ t of the polysiloxanes used are about 18.7 MPa 1/2 for poly(methyl phenyl vinyl siloxane) and 19.5 MPa 1/2 for poly(methyl siloxane), respectively. By pyrolysis of the green layers, ceramic coatings were obtained by keeping the particular surface structures.