THERMAL CONTROL OF SHAPE MEMORY ALLOYS

摘要

The invention relates to shape memory alloys. In particular, the invention relates to a shape memory alloy arrangement that includes a shape memory alloy member that is configured to undergo transformation between marten site and austenite phases in response to a change in temperature of the shape memory alloy member. The arrangement also includes a heat conductive material in contact with the shape memory alloy member wherein the heat conductive material is operable for controlling the transfer of heat to or from the shape memory alloy member by conduction. The invention also relates to a shape memory alloy actuator including the shape memory alloy arrangement of the invention. The shape memory alloy arrangement is configured to be connected to a movable object and to move the object in response to a change in temperature of the shape memory alloy member.