Nitinol Shape Memory Alloy Wire
Diameter: 1.5 mm | Activation Temperature (Af): 35–40°C
Nitinol is a nickel-titanium shape memory alloy that undergoes a phase transformation in its crystal structure based on temperature changes. When cooled from its high-temperature austenite phase to the low-temperature martensite phase, it changes shape, then returns to its original form upon heating above the activation temperature.
Applications
-
Thermal and Electrical Actuators: Used in sensors, thermal valves in fluidics, and autofocus actuators in action cameras.
-
Biomedical Devices: Biocompatible material suitable for orthopedic implants, catheters, orthodontic brackets and wires, and neurovascular interventions such as stroke thrombolysis.
-
Stents: Collapsible for insertion into arteries or veins, expanding at body temperature to restore blood flow.
-
Structural Engineering: Superelastic Nitinol wires in concrete detect and indicate cracks, providing early warnings in bridges and buildings.
Nitinol wire’s shape memory, superelasticity, and biocompatibility make it ideal for medical, mechanical, and structural engineering applications.
