Shape Memory Alloy
No contamination, simplicity, and speed of application of the space age shape memory alloy, Tinel, are the key elements of the procedure. They have the ability to return to a predetermined shape when heated. Tinel is an alloy comprising nickel and titanium from which a sleeve coupling is fabricated. Through an elaborate machining process, a sleeve coupling is made to a diameter that is 3 percent smaller than the outside diameter of the pipe being joined.