Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras

Method for Improving the Tribological Properties of Titanium Substrate

Technology Category/Market

Technology: pure titanium substrate

Industry: Military, Aerospace, Petrochemical, Medical including others;

Applications: Aerospace, Marine, Automotive Manufacturing, Surgery & Dentistry, Jewelry making, Racing Sports, and Aquarium, 

Market: The global titanium market was valued at $24.7 billion in 2021, projected to reach $33.5 billion by 2026, growing at a CAGR of 6.3% from 2021 to 2026.


Targeted Industries

Watermarking IP design,

Electronic circuits

Problem Statement

  • Titanium & its alloys have proven to be indispensable in various industry fields owing to their exceptional properties related to their lightweight nature, high strength and biocompatibility.
  • However, poor abrasion resistance is considered one of the major issues that cause failure of the industrial components made up of titanium and its alloys.
  • Therefore, suitable surface modification or coating techniques have been utilized to improve the wear-resistance property of the underlying titanium metal substrate. However, surface modifications such as thermal oxidation, plasma-based treatments etc. result in surface defects that restrict their application scope.
  • Thus, this study focusses on producing protective coatings that have little impact on the physical properties of the metal substrate.
  • Current, technology addressed above problem statement through patented Method/Process.


Patent literature describe about a method for improving tribological properties of a titanium substrate through electrophoretic deposition (EPD) of graphene coatings, wherein the features of the invention are stated herein:

  1. Said titanium substrate is a commercially pure titanium substrate.
  2. Said commercially pure titanium substrate is coated with graphene nanoplatelets.

  3. The EPD suspension comprises of graphene nanoplatelets, magnesium nitrate hexahydrate (in a ratio of 1:1) as a surface charging agent, and isopropyl alcohol as a liquid suspension medium.

  4. Said electrophoretic deposition is cathodic electrophoretic deposition.

The process of obtaining titanium substrate with improved tribological properties are depicted in the figures.

Key Features/Value Proposition

  • Technical Perspective: Claimed Patent provides graphene coated titanium substrate which possesses reduced coefficient of friction (COF) & specific wear rate as compared to the uncoated commercially pure titanium substrate. The COF of uncoated titanium substrate was reduced by 60% to 90% due to graphene coatings.

  • Industrial Perspective: Patented process is an efficient method & cost-effective to obtain enhanced lubricating & wear resistance properties of uncoated titanium substrate.

Questions about this Technology?

Contact for Licensing

Research Lab

Prof. Arunachalam N

Dept. of Mechanical Engineering

Intellectual Property

  • IITM ID F Ref. 2237
  • IN Patent No: 428881 (Granted) 

Technology Readiness Level

TRL- 4

Proof of Concept ready & validated

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