Graphite-polymer coatings for electrically induced thermal actuation of shape memory alloys

Bo Liu; Shawn Bourdo; Enkeleda Dervishi; Brian Berry; Han Kim; Abhijit Bhattacharyya; Tito Viswanathan

doi:10.1117/12.540076

29 July 2004 Graphite-polymer coatings for electrically induced thermal actuation of shape memory alloys

Bo Liu, Shawn Bourdo, Enkeleda Dervishi, Brian Berry, Han Kim, Abhijit Bhattacharyya, Tito Viswanathan

Proceedings Volume 5388, Smart Structures and Materials 2004: Industrial and Commercial Applications of Smart Structures Technologies; (2004) https://doi.org/10.1117/12.540076
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

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.

Citation Download Citation

Bo Liu, Shawn Bourdo, Enkeleda Dervishi, Brian Berry, Han Kim, Abhijit Bhattacharyya, and Tito Viswanathan "Graphite-polymer coatings for electrically induced thermal actuation of shape memory alloys", Proc. SPIE 5388, Smart Structures and Materials 2004: Industrial and Commercial Applications of Smart Structures Technologies, (29 July 2004); https://doi.org/10.1117/12.540076

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