This document summarizes a seminar presentation on using graphene as a lubricant. It begins with an introduction to lubrication and different types of lubricants. A literature review shows previous research concluded that adding modified graphene platelets to oil improved lubrication properties. The document describes the properties of graphene that make it suitable as a lubricant, including its strength, smooth surface, and ability to exhibit superlubricity. Case studies demonstrate that graphene reduces wear and friction when used as a solid lubricant or additive in base oils. The conclusion is that graphene has potential as an effective new lubricant due to its properties and ability to significantly reduce friction and wear.

1. Prepared by: Miss. Shruti B. Chaudhari
A
Seminar
on
Study of Graphene As A
Lubricant

2. Contents
 Introduction
 Literature Review
 Graphene
 Case Study
 Conclusion

3. Introduction
 Lubrication
 Wear and Friction
 Necessity of Lubrication
 Advantages of Lubrication
 Applications of Lubrication

4.  Lubricants
 Types of Lubricants
Solid
Semi-solid
Liquid
Gaseous
 Functions of Lubricants
 Characteristics of ideal Lubricants

5. Literature Review
Sr.
No.
Name of
Author
Title of paper Year Methodology Conclusion
1 Jinshan Lin
Liwei Wang
Guohua Chen
Modification of Graphene
Platelets and their
Tribological
Properties as a Lubricant
Additive
2010 Experimental The overall lubricious
properties of
the lubricating oil were
notably improved, due to
the addition of MGP.
2 D. Berman,
A Erdemir,
A. V. Sumant
Graphene: a new
emerging lubricant
2014 Review Overview of the use of
graphene as lubricant for
nano scale as well as
macro scale.
3 Oleksiy
Penkov et al
Tribology of Graphene: A
Review
2014 Review Review of tribology of
graphene and factors
influencing its friction
and wear behaviour.

6. Sr.
No
.
Name of
Author
Title of paper Year Methodology Conclusion
4 E.D. Ramón-
Raygoza et al
Development of
nanolubricant based on
impregnated multilayer
graphene for automotive
applications: Analysis of
tribological properties
2016 Experimental Engine oil added with
MLG and MLG
impregnated with
nanomaterials showed the
ability to integrate a
friction modifier with
an anti-wear modifier in a
single lubricant
5 A.K. Rasheed
et al
Graphene based nanofluids
and nanolubricants –
Review of recent
developments
2016 Review Review of recent
developments in graphene
based lubricants.

7. GRAPHENE
 Two dimensional honeycomb lattice
 History
Andre Geim and Konstantin Novoselov (University of
Manchester)

8. Methods of Synthesis

9. Properties of Graphene
 High Mechanical strength
 High Thermal conductivity
 Chemical Inertness
 Automatically smooth surface
 High Flexibility
 Exhibit superlubricity on lattice
mismatch

10. Graphene : Solid Lubricant
 Graphene powder or flakes are used as
lubricant.
 High load carrying capacity
 Friction and wear reduction depends on
number of layers of graphene
 With a coating thickness of 0.001-0.002µm,
graphene gives a coefficient of friction of
0.15-0.2 in humid as well as dry conditions.

11. Graphene : Additive in base
oils
 Graphene flakes are dispersed in
base oils
 Graphene is modified for enhanced
lubrication
 Base oil along with graphene reduces
wear rate upto 4 orders of magnitude
 Also used as additive in greases

12. Parameters affecting friction and
wear
 Number of graphene layers
 Defects in graphene
 Magnitude of load
 Addition of Substrate
 Oxidation of graphene
 Concentration of graphene in additives

13. Case Study
I. Modification of graphene platelets and their
tribological properties as a lubricant.
Base oil used: SN350
Additives used: Modified Graphene Platelets(MGP),
Modified Natural Flake Graphite(MNFG).
Modifier used: Oleic Acid and Stearic Acid
Machine used: MS 10A Four Ball Machine

14. Results
 Stability Test  Load test
Fig. Suspension stability of lubricating
oils with MGP and GP
Fig. Effect of MGP and MNFG
concentration on maximum nonseizure
load

15.  Wear Rate  Friction Coefficient
Fig. Wear rate as a function of
friction time
Fig. Friction Coefficient as a function
of friction time

16. • Surface Analysis
a) For base oil b) For base oil with MNFG
c) For base oil with MGP

17. II. Oil impregnated with multi layer graphene for
automotive applications:
Base oil used: SAE 25 W-50
Additives used : Multilayered graphene(MLG),
MLG-Cu, MLG-PANI
Machine used: Tribometer -T05-block-on-ringwear
tester

18. Results
-10
-5
0
5
10
15
20
25
30
35
40
45
ReductioninFrictionCoefficient%
0
10
20
30
40
50
60
70
ReductioninWearCoefficient%

19. Conclusion
 Graphene has properties like high mechanical
strength, chemical inertness, smooth surface,
etc which makes it an ideal lubricant.
 Compared to most other solid lubricants, gives
low coefficient of friction
 Gives brilliant results when used as an
additive.
 Graphene is a relatively unexplored area and
has a good future scope.