Composite tape spring with engineered deployment energy using nanoparticles and methods of making

A device for storing energy for the deployment of a structure comprising:

• a tape spring, said tape spring comprised of an elastic layer located in between one or more viscoelastic layers to form an elongated tape spring having a longitudinal axis;
• said tape spring including a plurality of alumina nanoparticles located in said viscoelastic;
• said tape spring having a rolled state and an unfurled state;
• in said rolled state said tape spring stores energy;
• in said unfurled state said tape spring exerts energy and deploys a structure;
• and
• wherein said alumina nanoparticles reduce the long-term creep and stress relaxation effects of radiation and thermal degradation.