APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter iResearch App Facebook

BROWSE VOLUMES

Year Range: 
Search Issue | RSS Feeds RSS
Previous Issue Next Issue

30 Apr 2012

Volume 100, Issue 18, Articles (18xxxx)

Issue Cover Spotlight Figure

Appl. Phys. Lett. 100, 181901 (2012); http://dx.doi.org/10.1063/1.4705414 (4 pages)

Etienne Brasselet, Arnaud Royon, and Lionel Canioni
Enlarge Image | Read More
Return to All Sections
back to top
RSS Feeds

Large actuation and high dielectric strength in metallized dielectric elastomer actuators

Sze Hsien Low, Li Lynn Shiau, and Gih-Keong Lau

Appl. Phys. Lett. 100, 182901 (2012); http://dx.doi.org/10.1063/1.4709480 (4 pages) | Cited 1 time

Online Publication Date: 30 April 2012

Full Text: Read Online (HTML) | Download PDF

Show Abstract
Metal films are seldom used as compliant electrodes for dielectric elastomer actuator (DEA) because they tend to restrain deformation of soft dielectrics. This work showed that silver film electrodes formed by electroless deposition (ELD) are indeed stretchable, and the DEA using ELD silver electrodes is able to generate an actuation up to 50% areal strain. Such ELD silver electrodes can self-heal, remain conductive at up to 33% uni-axial strain, and do not stiffen the dielectric layer as much as the sputtered silver electrodes. This metallized DEA can sustain a high breakdown field up to 350 MV/m, which is good for generating a large actuation force.
Show PACS
85.50.-n Dielectric, ferroelectric, and piezoelectric devices

Defect chemistry of Ti-doped antiferroelectric Bi0.85Nd0.15FeO3

Ian M. Reaney, Ian MacLaren, Liqiu Wang, Bernhard Schaffer, Alan Craven, Kambiz Kalantari, Iasmi Sterianou, Shu Miao, Sarah Karimi, and Derek C. Sinclair

Appl. Phys. Lett. 100, 182902 (2012); http://dx.doi.org/10.1063/1.4705431 (3 pages) | Cited 1 time

Online Publication Date: 2 May 2012

Full Text: Read Online (HTML) | Download PDF

Show Abstract
Aberration corrected scanning transmission electron microscopy revealed that Bi0.85Nd0.15Fe0.9Ti0.1O3 ceramics contain coherent Nd-rich precipitates distributed throughout the perovskite lattice, implying charge compensation is obtained by the creation of VNd/// and not VBi///. At low concentrations, therefore, Ti4+ replace Fe2+ with the creation of 2/3VNd///, and at higher concentrations (when Fe2+ have been eliminated and the conductivity suppressed), Fe3+ with the creation of 1/3VNd///. The switch in ionic compensation mechanism from 2/3VNd/// at low Ti concentrations (∼1%) to 1/3VNd/// at higher concentrations (>1%) results in a decrease in the magnitude of ΔTC/Δx, as the disruption of long range anti-polar coupling declines.
Show PACS
77.80.B- Phase transitions and Curie point
66.30.H- Self-diffusion and ionic conduction in nonmetals
61.72.up Other materials
77.84.Cg PZT ceramics and other titanates
81.30.Mh Solid-phase precipitation
61.66.Fn Inorganic compounds
Return to All Sections
Close

Google Calendar

ADVERTISEMENT

Go to AIP Home   © AIP Publishing LLC
close