Ultra-Low Friction with a Protic Ionic Liquid Boundary Film at the Water-Lubricated Sapphire-Stainless Steel Interface

被引：103

作者：

Espinosa, Tulia ^{[1
]}

Jimenez, Miguel ^{[1
]}

Sanes, Jose ^{[1
]}

Jimenez, Ana-Eva ^{[1
]}

Iglesias, Miguel ^{[2
]}

Bermudez, Maria-Dolores ^{[1
]}

机构：

[1] Univ Politecn Cartagena, Grp Ciencia Mat & Ingn Met, Dept Ingn Mat & Fabricac, Cartagena 30202, Spain

[2] Univ Fed Bahia, Dept Engn Quim, Salvador, BA, Brazil

来源：

TRIBOLOGY LETTERS | 2014年 / 53卷 / 01期

关键词：

Protic ionic liquid; Water; Stainless steel; Sapphire; Friction; Wear; Boundary lubrication; Surface interactions; TRIBOLOGICAL BEHAVIOR; SURFACE INTERACTIONS; ADDITIVES; SALTS;

D O I：

10.1007/s11249-013-0238-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The sapphire/AISI 316L contact has been lubricated with water, with the protic ionic liquid (PIL) bis (2-hydroxyethylammonium) succinate (MSu), and with a 1 wt% solution of MSu in water. Neat water evaporates after the running-in period to give a transition to dry contact. Neat MSu reduces the running-in period, reducing the friction coefficient to 0.09, an 88 % lower than water. Water + 1 wt% MSu reduces the running-in period, and after water evaporation, a PIL boundary film is formed, with an ultralow minimum friction coefficient of 0.0001, and a mean friction value of 0.02, a 97 % lower than that of water, and a 78 % lower than that of neat MSu. Surface interactions have been studied by 3D profilometry, FTIR, SEM-EDX, and XPS analysis.

引用

页码：1 / 9

页数：9

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