Finite-element modeling of low-stress suspension structures and applications in RF MEMS parallel-plate variable capacitors

2006 ◽  
Vol 54 (5) ◽  
pp. 2211-2219 ◽  
Author(s):  
A.M. Elshurafa ◽  
E.I. El-Masry
Science ◽  
2020 ◽  
Vol 370 (6512) ◽  
pp. 125-129 ◽  
Author(s):  
A. Torelló ◽  
P. Lheritier ◽  
T. Usui ◽  
Y. Nouchokgwe ◽  
M. Gérard ◽  
...  

Cooling devices based on caloric materials have emerged as promising candidates to become the next generation of coolers. Several electrocaloric (EC) heat exchangers have been proposed that use different mechanisms and working principles. However, a prototype that demonstrates a competitive temperature span has been missing. We developed a parallel-plate active EC regenerator based on lead scandium tantalate multilayer capacitors. After optimizing the structural design by using finite element modeling for guidance and to considerably improve insulation, we measured a maximum temperature span of 13.0 kelvin. This temperature span breaks a crucial barrier and confirms that EC materials are promising candidates for cooling applications.


2020 ◽  
pp. 145-185
Author(s):  
Ravi Solanki ◽  
Swarrup J. Sakthi ◽  
Ashutosh Mahajan

1991 ◽  
Vol 3 (1) ◽  
pp. 235-253 ◽  
Author(s):  
L. D. Philipp ◽  
Q. H. Nguyen ◽  
D. D. Derkacht ◽  
D. J. Lynch ◽  
A. Mahmood

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