Meet the Team – Dr. Gregory J. Hildeman

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Dr. Gregory J. Hildeman is the Vice President of Technology at Performance Power Materials. He has 32 years of experience and an extensive background in the aluminum industry. Previous positions include Vice President of Technology at AMG Aluminum where he was responsible for development of new aluminum master alloys and improved grain refiners. At Alcoa for 29 years, Dr. Hildeman was the Division Manager of the Molten Metal Processing Division at Alcoa’s Technical Center. He was responsible for leading Alcoa’s worldwide ingot technology activities in areas of recycling, melting, alloying, grain refinement, metal treatment, casting and solidification. As a research scientist, Dr. Hildeman worked on process and alloy development of rapidly solidified aluminum P/M alloys.

In addition to his experience in the aluminum industry, Dr. Hildeman worked in the solar silicon industry as Vice President of Engineering at Solar Power Industries. He was responsible for research and development, quality assurance and engineering support of manufacturing operations for producing directionally solidified high purity silicon ingots, wafers and photovoltaic cells.

Dr. Hildeman received a Sc.D. in Metallurgy from Massachusetts Institute of Technology with a minor in business from the Sloan School of Management. He also has a Masters and a Bachelor degree in Metallurgical Engineering from the University of Wisconsin. In 2004, Greg was the President of The Minerals, Metals and Materials Society (TMS) and elected a Fellow of ASM International in 1991 for his research on development of high strength, rapidly solidified powder aluminum alloys.

He is an author of 18 papers and 23 presentations in field of aluminum powder metallurgy and rapid solidification, silicon casting, bricking, cell processing and solar energy, editor of two books on aluminum powder metallurgy alloys, and Subject Chair for Light Metals Cast Shop. Dr. Hildeman is the inventor on 11 patents in areas of aluminum powder metallurgy alloys and processing, cathodes for aluminum electrolysis and ingot casting processes.


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