Mechanical properties of alumina-PEEK unidirectional composite - Compression, shear, and tensionAn Al2O3 (alumina)-fiber composite with high strain to failure was fabricated with a thermal plastic PEEK (poly-ether-ether-ketone). The Al2O3-PEEK composite shows a marked improvement over thermally setting composite in that it absorbs 150 percent more elastic-strain energy at 76 K than at room temperature. This increase in fracture toughness at low temperatures can provide improved fatigue performance for thermal isolation straps at low temperature. Other mechanical property results suggest improvements for applications where graphite-epoxy materials are presently being used at low temperatures and where light weight is not a critical issue.
Document ID
19920030514
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Kriz, R. D. (National Inst. of Standards and Technology Boulder, CO, United States)
Mccolskey, J. D. (NIST Boulder, CO, United States)