The shape memory effects and mechanical properties of β-Cu based shape memory alloy can be badly deteriorated by high elastic anisotropy factors and large grain size

which can heavily obstruct industrial application. Based on above reasons

a single crystal furnace and crystallizer were designed to prepare single crystal Cu-Al-Be and Cu-Al-Ni alloy

in which the effects of grain boundary is relieved. The novelty of the apparatus is that the crystallizer goes through the furnace from the upper to bottom to ensure stabilization of single crystal growth. The experimental results verify that the self-designed single crystal directional furnace has successfully prepared single crystal Cu-Al-Be shape memory alloy.