德国萨尔大学的科学家开发出一种利用镍钛合金导线充当肌肉的人造手臂。在无法升高或降低温度时,它们可以根据记忆恢复其形状。这些导线也能起到传感器的作用。尼季诺尔镍钛合金于20世纪50年代被研制出来。因为其“记忆性”被应用于医疗器械领域,它能记住并恢复其形状。例如,镍钛合金制成的冠状动脉支架被置入冠状动脉以扩张血管中的狭小区域。 Scientists at the University of Saarland in Germany have developed an artificial arm that uses NiTi wires as muscles. When they can not raise or lower the temperature, they can recover their shape from memory. These wires can also function as sensors. Nitinol nickel-titanium alloy was developed in the 1950s. Because its “memory” is used in the field of medical devices, it can remember and restore its shape. For example, coronary stents made of nitinol are inserted into the coronary arteries to dilate the narrow area in the blood vessel.