Modification of carbon-fiber-composite surface emissivity/reflectance by high-index interference films

John N. Pike; Linn H. Matthews

doi:10.1117/12.279108

1 October 1997 Modification of carbon-fiber-composite surface emissivity/reflectance by high-index interference films

John N. Pike, Linn H. Matthews

Proceedings Volume 3133, Optical Thin Films V: New Developments; (1997) https://doi.org/10.1117/12.279108
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

High strength/weight carbon fiber-reinforced composites (CFRCs) are finding applications where control of surface infrared emission or reflection is desirable. A quarter wave sputtered Ge film has been shown to reduce the normal emittance of a bismaleimide CFRC in the 8 - 14 micrometers band by 39%, with angle dependence theoretically constant out to 80% off-axis. A three-layer HLH stack is predicted to reduce emittance of less than 0.1. For thermal IR polymer curing, a single-layer coating optimizing emissivity in the polymer's absorption band while suppressing emission at longer wavelengths may yield electric power savings in the 10 - 20% range.

Citation Download Citation

John N. Pike and Linn H. Matthews "Modification of carbon-fiber-composite surface emissivity/reflectance by high-index interference films", Proc. SPIE 3133, Optical Thin Films V: New Developments, (1 October 1997); https://doi.org/10.1117/12.279108

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