Fourier Transform Infrared (FTIR) Fiber Optic Monitoring Of Composites During Cure In An Autoclave (original) (raw)

Proceedings of SPIE, 1990

Abstract

Real-time in situ monitoring of the chemical states of epoxy resins was investigated during cure in an autoclave using infrared evanescent spectroscopy. Fiber evanescent sensors were developed which may be sandwiched between the plies of the prepreg sample. A short length of sapphire fiber was used as the sensor cell portion of the fiber probe. Heavy metal fluoride glass optical

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