TY - GEN
T1 - Coatings for retardation of thermo-oxidative degradation in high temperature polymer matrix composites
AU - An, N.
AU - Tandon, G. P.
AU - Pochiraju, K.
PY - 2011
Y1 - 2011
N2 - This paper presents a design of oxidation barrier coatings for High Temperature polymer matrix composites (HTPMCs), their fabrication and experimental performance characterization. A comprehensive study of oxidation growth in polymer resin and its composites with a variety of metal coating materials are performed. Metal coatings are fabricated with micro-fabrication processes which included thermal and e-beam evaporation. Surface roughness is enhanced with abrasives and the roughness is measured with Atomic Force Microscopy. The retardation in oxidation processes in coated PMC specimens is then characterized with isothermal aging studies and compared to that in the uncoated specimens. Experimental characterization results are presented for polyimide composites with aluminum, alumina, titanium, and silver coatings. Surface roughness, which enhances the mechanical bond between the polymer and the metal coatings, is found to have influence on the coating adhesion. Results show that the oxidation resistance and durability can be extended if sufficient adhesion can be engineered between the PMC and the metal coatings. The oxidation barrier metal coatings can potentially add multiple other functionalities as a hybrid composite system.
AB - This paper presents a design of oxidation barrier coatings for High Temperature polymer matrix composites (HTPMCs), their fabrication and experimental performance characterization. A comprehensive study of oxidation growth in polymer resin and its composites with a variety of metal coating materials are performed. Metal coatings are fabricated with micro-fabrication processes which included thermal and e-beam evaporation. Surface roughness is enhanced with abrasives and the roughness is measured with Atomic Force Microscopy. The retardation in oxidation processes in coated PMC specimens is then characterized with isothermal aging studies and compared to that in the uncoated specimens. Experimental characterization results are presented for polyimide composites with aluminum, alumina, titanium, and silver coatings. Surface roughness, which enhances the mechanical bond between the polymer and the metal coatings, is found to have influence on the coating adhesion. Results show that the oxidation resistance and durability can be extended if sufficient adhesion can be engineered between the PMC and the metal coatings. The oxidation barrier metal coatings can potentially add multiple other functionalities as a hybrid composite system.
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M3 - Conference contribution
AN - SCOPUS:84865637493
SN - 9781618391964
T3 - 26th Annual Technical Conference of the American Society for Composites 2011 and the 2nd Joint US-Canada Conference on Composites
SP - 470
EP - 485
BT - 26th Annual Technical Conference of the American Society for Composites 2011 and the 2nd Joint US-Canada Conference on Composites
T2 - 26th Annual Technical Conference of the American Society for Composites 2011 and the 2nd Joint US-Canada Conference on Composites
Y2 - 26 September 2011 through 28 September 2011
ER -