im looking for the surface energy and hamaker constant of covart (FeNi) and covart/gold interfaces Thanx Sinan HALIYO Laboratoire de Robotique de Paris 10-12 av. de l'Europe 78140 Velizy - FRANCE tel : (33) 1 39.25.49.76/74 fax : (33) 1 39.25.49.67 mail: haliyo@robot.uvsq.fr