Title :
Application of THz radiation to polyethylene composite materials
Author :
Palka, Norbert ; Ospald, Frank ; Beigang, Rene ; Miedzinska, Danuta
Author_Institution :
Inst. of Optoelectron., Mil. Univ. of Technol., Warsaw, Poland
Abstract :
We report on the terahertz analysis of the internal structure of ultra-high molecular weight polyethylene composite materials. The visualisation of interfaces between the perpendicularly arranged plies and the identification of stacking faults is possible because the THz refractive index depends on the orientation of fibres in the plies. Thicknesses of all plies in a composite material were determined. Moreover, the images of a delamination are presented.
Keywords :
delamination; polymers; refractive index; stacking faults; terahertz wave spectra; delamination images; fibre orientation; interface visualisation; internal structure; perpendicularly arranged plies; ply thicknesses; stacking faults; terahertz radiation; terahertz refractive index; ultrahigh molecular weight polyethylene composite materials; Composite materials; Delamination; Optical fiber polarization; Polyethylene; Reflection; Refractive index;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956139
