FT-IR photoacoustic spectroscopy applied to the curing and aging of composites

被引:0
|
作者
Jones, RW [1 ]
Sweterlitsch, JJ [1 ]
Wagner, AJ [1 ]
McClelland, JF [1 ]
Hsu, DK [1 ]
Polis, DL [1 ]
Sovinski, MF [1 ]
机构
[1] Iowa State Univ, Ames Lab, Ames, IA 50011 USA
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中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Fourier-transform infrared photoacoustic spectroscopy has been applied to carbon-fiber composites to test whether bulk physical properties of the composites could be determined using the near-surface-sensitive photoacoustic approach. Both the cure levels of carbon fiber/cyanate ester composites and the interlaminar shear strengths of artificially aged carbon fiber/epoxy composites were successully measured. Standard errors of cross validation were 3.46% cure for a sample set ranging from 8% to 95% Cured and 1.60 MPa for aged samples with strengths ranging from 22 to 77 MPa.
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页码:1094 / 1099
页数:6
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