Shape Memory Alloys Nickel Titanium By Richard Cordero II

Shape Memory Alloys Metals that remember their original shape First observed by Chang and Read in 1932 Shape memory effect observed in 1951 NiTi discovered by William J. Buehler in 1961

Nickel Titanium Discovered at Naval Ordnance Laboratory Most common type of shape memory alloy Two solid phases Martensite phase Martensite phase Austensite phase Austensite phase

Current Applications Medical Tweezers Tweezers Orthodontic wire Orthodontic wire Eye glass frames Eye glass framesSafety Anti-scalding devices Anti-scalding devices fire-sprinklers fire-sprinklersMiscellaneous Appliances Clothing Structures Micromanipulators Robotic actuators

Future Applications Engines in cars and airplanes Car frames Engine cooling Carburetor Engine lubrication controls

References Shape Memory Alloys; Lin, Richard S S S Johnson Matthey; inc.com/html/nitinol_components.html inc.com/html/nitinol_components.htmlhttp:// inc.com/html/nitinol_components.html Nickel – Titanium Shape Memory Alloys; Memory Metal; M/CD2R1.HTM M/CD2R1.HTM M/CD2R1.HTM Shape Memory Alloys;