Cover Image, Volume 50, Issue 7
Article first published online: 23 FEB 2012
Copyright © 2012 Wiley Periodicals, Inc.
Journal of Polymer Science Part B: Polymer Physics
Volume 50, Issue 7, pages i–ii, 1 April 2012
How to Cite
(2012), Cover Image, Volume 50, Issue 7. J. Polym. Sci. B Polym. Phys., 50: i–ii. doi: 10.1002/polb.23055
- Issue published online: 23 FEB 2012
- Article first published online: 23 FEB 2012
- Cited By
Micro-mechanical strain sensors are demonstrated by subjecting carbon nanocones to an alternating electric field aligning them into single strings in a polymer matrix, as presented on page 477 by Henrik Høyer, Matti Knaapila, Jakob Kjelstrup-Hansen, Xuhai Liu, and Geir Helgesen. The strings have a length of 10 to 100 μm and a thickness of about 5 μm, corresponding to the thickness of a few particles. Since the particle fraction is an order of magnitude lower than the percolation threshold and makes the material transparent it can be UV-cured, thus locking the particles into place. The composites can subsequently be deflected resulting in a reversible piezoresistive effect. The obtained gauge factor of 50 is comparable to that of piezoresistive silicon cantilevers.