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Proceedings Paper

Graphite-polymer coatings for electrically induced thermal actuation of shape memory alloys
Author(s): Bo Liu; Shawn Bourdo; Enkeleda Dervishi; Brian Berry; Han Kim; Abhijit Bhattacharyya; Tito Viswanathan
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Paper Abstract

Electrically conductive graphite-polymer coatings on electrically insulated nichrome wires are used as electrical resistors to heat the coating-wire assemblage. Preliminary experiments have demonstrated steady state surface temperatures of about 160 deg C. Further, the electrical power input for the coated wires is almost 1/2 that of the power input for uncoated wires. Experiments and analytical modeling indicate the power reduction is, in large part, due to reduced convective losses to the environment. This work is a first step in the development of efficient electrical resistors for shape memory alloys.

Paper Details

Date Published: 29 July 2004
PDF: 9 pages
Proc. SPIE 5388, Smart Structures and Materials 2004: Industrial and Commercial Applications of Smart Structures Technologies, (29 July 2004); doi: 10.1117/12.540076
Show Author Affiliations
Bo Liu, Univ. of Arkansas/Little Rock (United States)
Shawn Bourdo, Univ. of Arkansas/Little Rock (United States)
Enkeleda Dervishi, Univ. of Arkansas/Little Rock (United States)
Brian Berry, Univ. of Arkansas/Little Rock (United States)
Han Kim, Pulaski Academy (United States)
Abhijit Bhattacharyya, Univ. of Arkansas/Little Rock (United States)
Tito Viswanathan, Univ. of Arkansas/Little Rock (United States)


Published in SPIE Proceedings Vol. 5388:
Smart Structures and Materials 2004: Industrial and Commercial Applications of Smart Structures Technologies
Eric H. Anderson, Editor(s)

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