Cu-Al-Ni Single Crystalline Shape Memory Alloys (SCSMA). Properties and Prospective for Application

Crystal grower designed and built in the Company allows manufacturing of Single Crystals of Shape Memory Alloys (SCSMA) up to 0.5 inch in diameter and ~6 feet long. By changing composition of Cu-Al-based alloy, transformation intervals of SCSMA could be easy adjusted from -200o C to +200o C. SCSMA are open a new prospective in SMA applications. Mechanical strength of SCSMA is comparable to TiNi SMA while recoverable deformation is up to 9% as compare to 3-4% for TiNi alloys. Devices incorporating SCSMA designed and manufactured.