Paraffin microactuator

A paraffin microactuator is a type of thermal microactuator. It uses the volume expansion associated with the solid-to-liquid phase change of paraffin wax to deliver the actuator stroke. Owing to the rather large volume expansion (typically 10-15 %) and low compressibility of paraffin, paraffin microactuators can deliver both large strokes and high actuation forces. The fabrication is often done by Microelectromechanical systems (MEMS) technology or sometimes precision mechanics.[1]

References

  1. ↑ Ogden, Sam; Klintberg, Lena; Thornell, Greger; Hjort, Klas; Bodén, Roger (30 November 2013). "Review on miniaturized paraffin phase change actuators, valves, and pumps". Microfluidics and Nanofluidics. doi:10.1007/s10404-013-1289-3.
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