Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1507708 | Cryogenics | 2013 | 4 Pages |
Abstract
We have measured the rate of elongation of a loaded Kevlar-49 fiber as a function of time at 4.2 K. The result puts a worst case upper limit of 0.028% in the elongation rate ΔL/L for a 0.5 mm diameter fiber kept under a constant tension of 2.7 kg for 8 months. A value that is probably closer to reality is actually 0.004%. This result proves that Kevlar-49 can be safely used in cryogenic applications in which high mechanical stability under stress is required.
► We measured the elongation of a loaded Kevlar-49 fiber at 4.2 K. ► We kept a fiber under a constant tension for 8 months. ► We obtained an upper limit of 0.028% in the relative elongation. ► The results shows that Kevlar-49 can be used in cryogenic applications.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
A. Bersani, L. Canonica, M. Cariello, R. Cereseto, S. Di Domizio, M. Pallavicini,