Shape memory alloy composite flexible substrates

摘要

A programmable shape device is described. The device comprises a wire grid made from a shape memory material. The grid is embedded in a transparent polymer. Under normal conditions, the device can be folded into any shape. Upon actuation, the device reverts back to a programmed parent shape. Such a device can be made into one shape during its desired use and another shape during storage or transportation. Methods of making and using a programmable shape device are described.

主权项

1. A device with a programmable shape, the device comprising:
at least one transparent polymer; at least one structure comprising a first mesh grid of a plurality of wires made from a first shape memory material and one or more second mesh grids of a plurality of wires made from one or more second shape memory materials embedded in the at least one transparent polymer, wherein the first mesh grid made from the first shape memory material has a first temperature-programmed parent shape, wherein the first shape memory material has a first transition temperature, wherein each of the one or more second shape memory materials has a second transition temperature, wherein the first shape memory material and the one or more second shape memory materials are different materials, wherein the first transition temperature and the second transition temperature are different, and wherein each of the one or more second mesh grids made from the second shape memory materials has a second temperature-programmed parent shape different from the first temperature-programmed parent shape; at least one switch configured to control a passage of an electric current through the structure; and at least one temperature sensor.