The SAM Model for Wear Inhibitor Performance of Dithiophosphates on Iron Oxide

Shaoyi Jiang,† Rawls Frazier,‡ Elaine S. Yamaguchi,§ Mario Blanco,† Siddharth Dasgupta,† Yanhua Zhou,† Tahir Cagin,† Yongchun Tang,| and William A. Goddard, III*,† Materials and Process Simulation Center, Beckman Institute (139-74), DiVision of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, CheVron Research and Technology Company, 100 CheVron Way, Richmond, California 94802, CheVron Chemical Company, Oronite Technology Group, 100 CheVron Way, Richmond, California 94802, and CheVron Petroleum Technology Company, 1300 Beach BouleVard, La Habra, California 90631