Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Corrosion Resistant TI-Based Thin Film Metallic Glass Coating and a Robust Method of Producing the Same
Categories for this Invention
Technology: Corrosion Resistant Ti-based Thin Film Metallic Glass Coating;
Industry: Metal finishing Industry;
Application: solar cell, optical coating, PCB (Semiconductor Industry), 3-D Printing, Performance Coating.
Market: The global thin film coatings market is projected to grow $17.3B by 2030 at a CAGR of 5.3% during the period of (2024-30).
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Problem Statement
- The problem statement discussed in the present subject matter is how to prepare a corrosion-resistant coating with good surface characteristics without the requirement of a base layer & which can be applied in a single step without the use of toxic solution processing.
- Hence, Present invention provides the solution in efficient manner.
Technology
- Present patent describes a corrosion resistant DC sputtered Titanium (Ti) based thin film metallic glass coating and method of producing the same. (Refer Fig. 1)
- The Corrosion resistant DC sputtered Titanium (Ti) based thin film metallic glass coating comprising an elemental composition Ti60-xZrxCu25Ni10Al5.
- Said glass coating exhibits amorphous properties, and wherein said glass coating has dense microstructure.
- Said glass coating has adhesion strength to the substrate of 120J/m2 even without a base & buffer layer coating.
- Said glass coating has a thickness in the range of 0.1 micrometer to 1 micrometer with a roughness in the order of 1 nanometer to 10 nanometers.
- Said glass coating comprises a mixture of complex oxide layers of Ti, Cu, Ni and Al when in electrolyte protecting it from corrosion.
- A method of producing corrosion resistant Titanium (Ti) based thin film metallic glass coating shown in flowchart. (Refer Fig.2)
Key Features / Value Proposition
- Provides cost-effective Ti-based metallic coating with a glassy structure which can resist corrosion because of its unique structure and composition, which can be applied by DC sputtering.
- The glass coating of the present invention can be applied without any base layer still posse enough adhesion.
- Method of producing of the glass coating comprises fabrication of a sputtering target by powder compaction followed by the deposition by DC sputtering at a relatively lower sputtering power density.
- Metallic glass coating can be deposited from a multicomponent single target, & the coating has good corrosion resistance due to 1) amorphous structure, 2) elemental composition, & 3) featureless dense microstructure;
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Ramachandra Rao M S
Department of Physics
Prof. Srinivasa Murthy B
Department of Metallurgical and Materials Engineering
Intellectual Property
IITM IDF Ref. 2548
IN Patent No. 537736
Technology Readiness Level
TRL-4
Technology validated in Laboratory