Study of the effects of Ca sulfonate on antiwear film formation by X-ray absorption spectroscopy using synchrotron radiation

被引：25

作者：

Kasrai, M ^{[1
]}

Vasiga, M

Fuller, MS

Bancroft, GM

Fyfe, K

机构：

[1] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada

[2] Sarnia Res Ctr, Imperial Oil Prod Div, Sarnia, ON N7T 7M1, Canada

来源：

JOURNAL OF SYNCHROTRON RADIATION | 1999年 / 6卷

关键词：

ZDDP; P and S XANES; detergents; wear;

D O I：

10.1107/S0909049598016574

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

X-ray absorption near edge (XANES) spectroscopy at the P and S L-edge and Kedges has been used to characterize antiwear films generated from combinations of the antiwear additives, zinc dialkyl dithiophosphates (ZDDPs), and the detergent additives, Ca sulfonates. The results clearly show the interaction of the detergent with the ZDDP in antiwear film formation. Zinc polyphosphate, in part, is converted to calcium phosphate. There are substantial differences between the effect of the neutral and overbased detergents. Wear is also affected by the presence of the detergent.

引用

页码：719 / 721

页数：3

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