(109e) Microwave Processing of Metals
- Conference: AIChE Spring Meeting and Global Congress on Process Safety
- Year: 2008
- Proceeding: 2008 Spring Meeting & 4th Global Congress on Process Safety
- Group: AIChE / ACS Jointly Co-sponsored Sessions
- Time: Tuesday, April 8, 2008 - 11:10am-11:50am
This paper will discuss new techniques for melting, casting and heat-treating metals using microwave energy. To date steels, platinum, titanium, zirconium, copper, brass, bronze, aluminum, and others have been melted. Melts exceeding 750 pounds and temperatures in excess of 2675°C have been accomplished. With a relatively simple setup, it is possible to melt and cast either reactive or non-reactive metals in a controlled environment of any desired gas, or a high vacuum. The equipment has a relatively small footprint and is easily converted to a variety of casting setups, material types and atmospheres. This basic method can be used in a variety of metal processing applications: melt, cast, heat-treat, sinter, infiltrate, and initiate and carry out chemical reactions. The same furnace has also been used to sinter ceramics, including alumina, titanium diboride, and boron carbide, as well as carry out microwave-enhanced diffusion such as chromizing of metals.
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