Triburnium
Triburnium was a metalic alloy used in Enolian hand-restraints. 

Kuroda Lor-ehn had subdermal implants, which were capable of depolarizing triburnium alloys, implanted into his wrists so that he could disable his retrains so to implement his daring plan to hijack the Enolian transport that was transporting him to Canamar. ()

See also
 Diburnium
 Tetraburnium

ja:トライバーニウム
Materials