No, Vibranium is the stuff the Captain America shield is made off. It's an almost indestructible alloy that also dissipates all the kinetic energy of impacts made to it without creating vibrations, so he could block a howitzer shot with the shield without getting knocked back or have the energy transmit through vibration to his body... It was developed and created by Tony Stark's father, but i don't quite recall if Stark Junior uses that on his suit as well. Probably yes, since it was his father that developed it.
EDIT: Ninja'd
EDIT: Ninja'd