9Spikes H.The history and mechanisms of ZDDP[J].Tribology Letters,2004,17(3):469-489.
10Choi U S,Kwon O K.The mechamism of action and performance of dialkyl 3,5-di-t-butyl 4-hydroxy benzyl phosphonates as a new antiwear additive[J].Wear,1991,146(1):63-77.