S. Pulnev, V. Nikolaev, Ioffe Physico-Technical Institute of the Russian Academy of Sciences, St.Petersburg, Russia; A. Priadko, I. Vahhi, Saint-Petersburg State Polytechnic University, St.Petersburg, Russia
Technology of CuAlNi single crystal with one-way and two-way shape memory effect and transformation temperatures in range 60-2000C have been developed. The crystals are tested for rotation and linear actuator with bending and tension force elements respectively. The preliminary experimental study of CuAlNi force elements demonstrate their advantages in comparison with NiTi ones. The test results are in good correlation with the results of original mathematical model for estimation of force and kinematic characteristics of actuators and drives. The high level of generated force, short time response, wide range of transformation temperatures and small sizes of the actuators and drives based on single crystals provide good perspectives for their application in industry and medicine.
