Smart materials and Micro/nano-systems are subfields of Materials Science engineering that concentrate on the creation and investigation of cutting-edge materials and compact systems. Smart materials are those whose characteristics or behaviours can change in response to environmental factors including temperature, light, stress, or electrical or magnetic fields. Shape memory alloys and piezoelectric materials, which can transform mechanical stress into electrical energy, are two examples of Smart Materials. Shape memory alloys can be designed to return to a predetermined shape after being deformed. Several fields, such as robotics, aircraft, and biomedical engineering, could benefit from the use of these materials.