Multiple Memory Material Technology
Shape Memory Alloys (SMA) have generated a lot of recent interest, given their ability to change shape and return to a ‘memorized’ state under different temperature conditions. This so-called hysteresis effect typically involves a transition between two states: the original, cold-forged shape and a new desired shape.
A research team at the University of Waterloo has recently announced an enhancement to this two-way effect, however. The newly developed Multiple Memory Material Technology (MMMT) allows several shape memories to be embedded within a single object, allowing the transition between many shapes at different target temperatures. An object may even be subdivided into different parts with different MMMT properties.
According to University of Waterloo engineer Ibraheem Khan, "This ground-breaking technology makes smart materials even smarter. In essence, a single material can be programmed to remember more shapes, making it smarter than previous technologies."