This is the user sandbox of Tachs. A user sandbox is a subpage of the user's user page. It serves as a testing spot and page development space for the user and is not an encyclopedia article. Create or edit your own sandbox here.
Finished writing a draft article? Are you ready to request review of it by an experienced editor for possible inclusion in Wikipedia? Submit your draft for review!
Govindan Sundararajan is an Indian materials engineer, known for his contributions in the areas of Surface Engineering and Ballistics.[1]
The Government of India honoured him, in 2014, by awarding his the Padma Shri, the fourth highest civilian award, for his contributions to the fields of science and technology.[2]
Dr. G. Sundararajan, obtained his B.Tech (Metallurgy) from IIT, Madras in 1976 and M.S and Ph.D from Ohio State University, Columbus, Ohio, U.S.A in 1979 and 1981 respectively. He returned to India in September 1982 and joined Defence Metallurgical Research Laboratory (DMRL) as a scientist. He was at DMRL till 1997 and then was appointed as Director of International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI) from September 1997.
During the course of his research career at DMRL and ARCI, Dr. Sundararajan has made outstanding contributions to the areas of tribological behaviour (erosion, sliding wear, abrasion) of metallic materials, composites and coatings, high temperature deformation and fracture behaviour of superalloys and other materials, laser surface modification (surface alloying cladding, transformation hardening) and laser materials processing (cutting, drilling & welding) of engineering materials, development of thermal spray coatings for the Kaveri Engine programme and towards the development of novel coating technologies like detonation spray coating, electro spark coating, microarc oxidation coating, cold spray coating and EB-PVD coating technology. A unique aspect of the multi-faceted research contributions of Dr. Sundararajan is that he has excelled not only in the design and fabrication of a large number of unique test facilities and in carrying out well planned experiments using such facilities but also has modeled extensively the physical phenomena involved. He is also responsible for establishing the Center for Laser Processing of Materials (now a part of ARCI), the Surface Engineering Division at ARCI the Center for Fuel Cell Technology at Chennai, and the Centre for Sol-Gel Nanocomposite Coatings at ARCI.
At ARCI, as its Director, Dr. Sundararajan had made notable contributions to the development, demonstration and commercialization of materials-based technologies. Over the last 8 years, over 30 technologies have been transferred to private industries located all over India. Dr. Sundararajan has also been responsible for setting up and operation of the Advanced Materials Technology Incubator (AMT) which currently houses 5 companies, all of them receivers of ARCI technology.
For his outstanding research and technology development contributions over the years, Dr. Sundararajan has received numerous awards. He is a recipient of the Shanti Swarup Bhatnagar prize for Engineering Science (1994), Best Metallurgist award (1995), FICCI award for Materials Science (2004) etc; Dr. Sundararajan is also a Fellow of the Indian Academy of Sciences (1992), Indian National Science Academy (1996), Indian National Academy of Engineering (1999), National Academy of Science (2002), Indian Institute of Metals (2002), and the American Society for Materials (2005). Dr. Sundararajan is also a recipient of the J.C Bose Fellowship for 5 years (2006-2011). He has published more than 170 papers in refereed international journals and conference proceedings and has guided the Ph.D work of many of his colleagues at DMRL and ARCI.
[4][4]
Name : Sundararajan, Dr Govindan
Date of Birth : 11-12-1953
Degree : Ph.D. (Ohio State)
Honours : FNAE, FNA, FNASc, FASM
Address : Director
IARC for Powder Metallurgy & New Materials (ARCI) Balapur P.O. City : Hyderabad 500 005
Fields of Specialization : Surface Engineering, Development of Normal Coating Technologies, High Temperature Deformation & Fracture and High Strain Rate Deformation & Ballistic Penetration
Process for continuous coating deposition and an apparatus for carrying out the process
Patent number: 8486237
Abstract: An apparatus for continuously forming thin ceramic coatings on metal sheets, foils or wires. The apparatus has a reaction chamber, perforated nylon sheets, nylon bar guides, copper rods attached to a power supply, nylon collecting rods, and an inlet and an outlet. The reaction chamber is capable of containing an electrolytic solution. The copper rods are separately connected to the R, Y, or B phase of the power supply. Each phase is provided with two thyristors and the output of the thyristors is connected to the copper rods using current transformers. A process for continuously forming thin ceramic coatings on metal sheets, foils or wires is also provided.
Type: Grant
Filed: October 14, 2009
Issued: July 16, 2013
Assignee: International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI)
Process for Continuous Coating Deposition and an Apparatus for Carrying Out the Process
Application number: 20120305402
Abstract: A process for forming coatings on metallic web, the process including: immersing at least three metallic webs in an electrolytic solution contained in a reaction chamber; passing wave multiphase alternating current across said metallic webs by using back-to-back thyristors connected in parallel; moving the metallic webs through the electrolytic solution; and removing the coated webs from the reaction chamber.
Type: Application
Filed: August 17, 2012
Issued: December 6, 2012
Assignee: International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI)
Process for Continuous Coating Deposition and an Apparatus for Carrying Out the Process
Application number: 20100163421
Abstract: An apparatus for continuously forming thin ceramic coatings on metal sheets, foils or wires. The apparatus having a reaction chamber, perforated nylon sheets, nylon bar guides, copper rods attached to a power supply, nylon collecting rods, and an inlet and an outlet. The reaction chamber is capable of containing an electrolytic solution. The copper rods are separately connected to the R, Y, or B phase of the power supply. Each phase is provided with two thyristors and the output of the thyristors is connected to the copper rods using current transformers. A process for continuously forming thin ceramic coatings on metal sheets, foils or wires is also provided.
Type: Application
Filed: October 14, 2009
Issued: July 1, 2010
Assignee: International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI)
Process for forming coatings on metallic bodies and an apparatus for carrying out the process
Patent number: 6893551
Abstract: A process for forming oxide based dense ceramic composite coatings on reactive metal and allow bodies involves suspension of at least two reactive metal or alloy bodies in a non-metallic, non-conducting, non-reactive chamber in such a way that it causes either partial or full immersion of the bodies in a continuously circulating electrolyte. Thyristor controlled, modified shaped wave multiphase alternating current power supply is applied across the bodies where in each body is connected to an electrode. Electric current supplied to the bodies is slowly increased to a particular value till the required current density is achieved and the maintained at the same level throughout the process. Visible arcing at the surface of the immersed regions of the bodies is identified when the applied electric potential crosses 60V. Electric potential is further increased gradually to compensate the increasing resistance of the coating.
Type: Grant
Filed: August 2, 2002
Issued: May 17, 2005
Assignee: International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI)
Inventors: Lingamaneni Rama Krishna, Alexander Vasilyevich Rybalko, Govindan Sundararajan
Process for forming coatings on metallic bodies and an apparatus for carrying out the process
Application number: 20030094377
Abstract: This invention disclosed in this application relates to a process for forming oxide based dense ceramic composite coatings on reactive metal and alloy bodies. The process involves suspension of at least two reactive metal or alloy bodies in a non-metallic, non-conducting, non-reactive chamber in such a way that it causes either partial or full immersion of the said bodies in a continuously circulating electrolyte. Thyristor controlled, modified shaped wave multiphase alternating current power supply is applied across the said bodies where in each body is connected to an electrode. Electric current supplied to the said bodies where in each body is connected to an electrode. Electric current supplied to the said bodies is slowly increased to a particular value till the required current density is achieved and the maintained at the same level throughout the process. Visible arcing at the surface of the immersed regions of the said bodies is identified when the applied electric potential crosses 60V.
Type: Application
Filed: August 2, 2002
Issued: May 22, 2003
Inventors: Lingamaneni Rama Krishna, Alexander Vasilyevich Rybalko, Govindan Sundararajan
[1]
Dr Sundararajan has made outstanding contribution to experimental and theoretical aspects of materials engineering, with special emphasis on tribological behaviour, high strain rate and high temperature deformation and fracture, impact dynamics and ballistic penetration resistance of materials
