Preparation of Cu@SiO 2 composite nanoparticle and its tribological properties as water‐based lubricant additive

2020 ◽  
Vol 32 (2) ◽  
pp. 69-79 ◽  
Author(s):  
Tiantian Liu ◽  
Changhua Zhou ◽  
Chuanping Gao ◽  
Yujuan Zhang ◽  
Guangbin Yang ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Lubricant Additive ◽  
Water Based ◽  
Composite Nanoparticle

Preparation and tribological properties of water-soluble copper/silica nanocomposite as a water-based lubricant additive

2012 ◽  
Vol 259 ◽  
pp. 824-830 ◽  
Author(s):  
Chunli Zhang ◽  
Shengmao Zhang ◽  
Laigui Yu ◽  
Zhijun Zhang ◽  
Zhishen Wu ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Lubricant Additive ◽  
Water Soluble ◽  
Water Based ◽  
Silica Nanocomposite

scholarly journals Assessment of Tribological Properties of Ti3C2 as a Water-Based Lubricant Additive

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5545
Author(s):  
Huong Thi Nguyen ◽  
Koo-Hyun Chung
Keyword(s):  
Stainless Steel ◽  
Tribological Properties ◽  
Direct Contact ◽  
Friction And Wear ◽  
Lubricant Additive ◽  
Practical Applications ◽  
Normal Forces ◽  
Low Viscosity ◽  
Water Based ◽  
Lubrication Additive

Water-based lubrication has attracted remarkable interest due to its environmental and economic advantages. However, practical applications of water-based lubrication are often limited, mainly because of low viscosity and corrosivity. The use of additives has been proposed to overcome these limitations. In this work, the tribological characteristics of titanium carbide (Ti3C2) MXenes, as additives for water-based lubrication, were systematically investigated for contact sliding between stainless steel under various normal forces and Ti3C2 concentrations. Both friction and wear were found to decrease with increasing Ti3C2 concentration up to 5 wt%, and then increased when the concentration was larger than 5 wt%. The results suggest that Ti3C2 flakes hindered direct contact, particularly at the edges of the contact interfaces. It was further shown that the agglomeration of Ti3C2 flakes may have reduced the hindering when an excessive amount of Ti3C2 (e.g., 7 wt%) was applied. The decreases in the friction coefficient and wear rate with 5 wt% of Ti3C2 concentration w approximately 20% and 48%, respectively. The outcomes of this work may be helpful in gaining a better understanding of the tribological properties of Ti3C2 as a feasible water-based lubrication additive.

Preparation and Tribological Properties of Surface-Capped Copper Nanoparticle as a Water-Based Lubricant Additive

2014 ◽  
Vol 54 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Chunli Zhang ◽  
Shengmao Zhang ◽  
Shiyong Song ◽  
Guangbin Yang ◽  
Laigui Yu ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Lubricant Additive ◽  
Copper Nanoparticle ◽  
Water Based

scholarly journals Tribological performance of various metal-doped carbon dots as water-based lubricant additives and their potential application as additives of poly(ethylene glycol)

Friction ◽  
2021 ◽  
Author(s):  
Weiwei Tang ◽  
Xuejun Zhu ◽  
Yufeng Li
Keyword(s):  
Ethylene Glycol ◽  
Tribological Properties ◽  
Carbon Dots ◽  
Lubricant Additives ◽  
Poly Ethylene Glycol ◽  
Wear Properties ◽  
Water Based ◽  
Friction Reducing ◽  
Poly Ethylene ◽  
Metal Doped

AbstractAdvances in nano-lubricant additives are vital to the pursuit of energy efficiency and sustainable development. Carbon dots (CDs) have been widely investigated in the domain of lubricant additives owing to their extraordinary tribological properties, in particular, their friction-reducing and anti-wear properties. Metal-doped CDs are a new type of CDs, and their friction-reducing and anti-wear properties are attracting increasing attention. Therefore, a series of CDs doped with various divalent metal ions have been successfully synthesized via one-pot pyrolysis. The tribological properties of the synthesized CDs as water-based lubricant additives are in the following order: Zn-CDs > Cu-CDs ≫ Mg-CDs > Fe-CDs > U-CDs. Specifically, adding 1.0 wt% of Zn-CDs into water-based lubricant results in 62.5% friction and 81.8% wear reduction. Meanwhile, the load-carrying capacity of the water-based lubricant increases from 120 N to at least 500 N. Zn-CDs as an additive have long service life. Additionally, anion-tuned Zn-CDs fabricated via anion exchange exhibit promise as lubricant additives for poly(ethylene glycol). Based on the results of wear scar surface analyses, it is discovered that tribochemical films, primarily composed of iron oxides, nitrides, metal carbonates, zinc oxides, zinc carbonates, organic compounds, and embedded carbon cores, formed on the rubbing surfaces with a thickness of approximately 270 nm when Zn-CDs are used as additives. This film combined with the “ball-bearing” and third-particle effects of Zn-CDs contributed to excellent lubrication performance.

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