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Browsing the "John Hellmann" Tag


May 25th, 2018 | by Belinda Raines

  Welcome to the Keramos National Professional Ceramic Engineering Fraternity web page. The main function of Keramos is to promote …

Photoblog from the ICC4

July 22nd, 2012 | by pwray@ceramics.org

A typical plenary session at Fourth International Congress on Ceramics, which just concluded in Chicago. Credit: ACerS. To wrap up …

Engineered proppants for hydrofracturing

December 15th, 2011 | by Eileen De Guire

Microstructure of glass ceramic proppant heat treated for optimal combination of strength, hardness, and fracture toughness. Credit: D. Hartwich, Penn …

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