Events

Microwave Processing of Various Materials & Its Advantages: An Overview

Date: 17 Dec 2008 - 17 Dec 2008

Venue: SIMTech Auditorium, Tower Block, Level 3

Abstract
New developments and innovative ideas in the area of materials processing have often led to the discovery of new materials, with interesting and useful properties, and/or new technologies which are energy-efficient and cost-effective. The use of microwave energy in the area of materials processing is one such new development. Microwave energy has been in use for over 50 years for various applications such as communication, rubber vulcanisation, drying, food processing, chemical syntheses and medical field. It is only in the last two decades that due to its inherent advantages the microwave energy is being increasingly applied in the area of materials processing. Microwave processing has several advantages over conventional sintering/heating, such as the reduction in cycle time, energy efficiency, eco-friendliness and providing finer microstructures leading to improved mechanical properties.

Over the years at Pennsylvania State University, researchers have synthesized and sintered many traditional and advanced ceramics, including hydroxyapatite, alumina, zirconia, non-oxides, phosphors, [NZP], ceramic pigments, electroceramics, etc. Hard metal composites (WC/Co), and transparent materials have also been processed successfully using microwave techniques. The latest development in this field is the processing of metallic materials and diamond-metal composites. Microwave technology has also been developed for melting of ceramics and metals with attractive advantages. The Materials Research Institute of the Pennsylvania State University has successfully developed various transparent ceramics of alumina, spinel, mullite, AlN, ALON, and hydroxyapatite in 15 - 30 minutes of sintering time and at ambient pressure. Important electroceramics such as BaTiO3, PZT, BMT, BZT, MLCs etc. have been also synthesized and sintered very rapidly. Sponsored by Dawnyx Technology Sdn Bhd, this seminar will highlight the latest development in the field of microwave materials processing.

About the Speaker
Professor Dr Dinesh Agrawal received his B.Sc. and M.Sc. (Physics) from Banaras Hindu University, India in 1970 and 1972, respectively, M.Tech. (Materials Science) from Indian Institute of Technology, India in 1975, and his doctorate degree in Solid State Science from The Pennsylvania State University, US in 1979. Currently, Prof Agrawal is Director of Microwave Processing and Engineering Center at Materials Research Institute of The Pennsylvania State University, where he is now a Senior Scientist and Professor of Materials, Engineering Science & Mechanics.

Professor Agrawal has over 30 years of experience in the area of materials processing for variety of applications. He has been a pioneer in the field of the application of microwave energy to develop energy efficient processing of variety of materials, including ceramics, composites, and metallic materials. Microwave processing is now emerging as a new innovative method to produce better, faster, cheaper, and greener products. Microwave technology has been developed for cemented carbides, multi-layer capacitors, electroceramics, and variety of other advanced and engineering materials. He has also been involved in the development of new low thermal expansion materials; he had co-developed a new family of low thermal expansion materials, now popularly known as [NZP].

His interests also include radio-active waste management, involving the development of ceramic waste forms using microwaves and traditional processes, synthesis, characterisation and fabrication of ceramic materials, sintering phenomena, diamond coating technology, sol-gel synthesis,
ceramic oxide superconductors, chemically bonded ceramics, sonochemistry, phase equilibria studies of ceramic oxides, phosphor chemistry, novel synthesis methods, etc.

He is listed in Marquis Who's Who (2008). He was elected as Professional member (academics) of World Academy of Ceramics in 2006. In 2004, he was appointed as Guest Professor at Wuhan University, China, and was nominated to Advisory Committee of International Microwave Power Institute (IMPI). He was also elected to the Technical Board of Microwave Working Group in 2003. His other honours include "Innovations in Real Materials Award" on the research in microwave processing of ceramics by International Union of Materials Research Societies in 1998, "New Zero Expansion Ceramic Family NZP-CTP" by National Association of Science, Technology and Society (NASTS) in 1994. Professor Agrawal has published more than 200 scientific publications and 15 patents in microwave area.

Programme
1.45pm :   Registration 

2.00pm :   Presentation by Prof. Dinesh Agrawal 
                For a copy of the presentation slides, please click here.

3.15pm :   Industry Sharing Session (Presentation by Dawnyx Technology 
                about industrial and academic collaboration followed by   
                Video show to showcase Synotherm HMIiLab system,
                microwave isolator, microwave furnaces)

3.35pm:    Q&A

3.30pm :   Refreshment & Networking

4.00pm :   End

Who Should Attend
Senior management staff, R&D managers, engineers, academic staff, researchers and students.

On-line Registration
Pre-registration for the seminar is free of charge. 

Enquiries
For technical enquiries: 
Dr Li Qingfa, Email: qfli@SIMTech.a-star.edu.sg 

For registration and event details:
Alice Koh, Email: Alicekoh@SIMTech.a-star.edu.sg