Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2008 | Volume: 8 | Issue: 7 | Page No.: 1206-1213
DOI: 10.3923/jas.2008.1206.1213
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

The Influence of Crystallization and Morphology on the Field Mechanical Induced Strain of Poly (Ethylene 2, 6-Naphthalene Dicarboxylate) Thin Films

B. Zegnini, L. Boudou and J. Martinez-Vega

Abstract:
Measurements are reported on the influence of crystalinity on the field induced strain response of Poly (ethylene 2, 6-naphthalene dicarboxylate) PEN thin films using an optical non contact measurement technique based on the tracking of successive positions of computerized markers. Markers move when the sample is subjected to the application of a dc high voltage and a computerized tracking of the successive positions of the four markers permit us to quantify the induced mechanical strain using Lagrangean formalism. The observed strain levels varied from ~10-3 to 10-2. The results revealed higher deformation levels in case of amorphous compared to similar partially crystallized samples. The field induced strain characteristics indicate three zones. Indeed, initially there is a region of very low deformation until an electrical field threshold is attained after which an increasing induced strain level is observed. Finally, there is a diminution of the strain that could be produced by a local densification of the material. This behaviour suggests the presence of a thermally dominated mechanism attributed to the propagation of local breakdowns caused by large local fields in micro-voids.
PDF Fulltext XML References Citation Report Citation
How to cite this article:

B. Zegnini, L. Boudou and J. Martinez-Vega, 2008. The Influence of Crystallization and Morphology on the Field Mechanical Induced Strain of Poly (Ethylene 2, 6-Naphthalene Dicarboxylate) Thin Films. Journal of Applied Sciences, 8: 1206-1213.

DOI: 10.3923/jas.2008.1206.1213

URL: https://scialert.net/abstract/?doi=jas.2008.1206.1213

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

Curve Bottom