members were added, five books were published, and the Center for Catalytic Science and Technology was established.
Art understood that chemical engineering education was both about teaching content, and equally, if not more importantly, about teaching student skills and giving them the confidence to solve a wide range of problems. His classes were interactive, and students knew it was dangerous to come to class unprepared. Students were encouraged to participate in a variety of ways, especially by explaining their solutions to the infamously many problems he assigned. Art wanted students to gain the confidence that they could solve problems on their own and in collaboration with others. His mentoring of students in their classroom and laboratory activities continued beyond their university days, and he had a major influence on many careers, several of whom have become leaders in academia and industry.
Art’s research contributions to rheology and the mechanics of non-Newtonian fluids were developed through critical experiments and innovative analysis. The papers he and his students produced were used extensively by many engineers’ throughout industry and academia to solve significant problems in fluid mechanics and heat transfer in tubular and in tank-type systems.
Recognition of his contributions included his election to the National Academy of Engineering in 1979, several national awards from the American Institute of Chemical Engineers, and designation as an Eminent Member of the profession in 1983. He also received awards from the Society of Rheology (the Bingham Medal and the Distinguished Service Award), the American Chemical Society, the American Society for Engineering Education, and the University of Delaware (Francis P. Alison Award). In addition, both the Katholieke Universiteit Leuven and the University of Delaware awarded him honorary doctorates.
Professor Metzner is survived by his wife of 58 years, Elisabeth “Betty” Krüger Metzner; daughter, Elisabeth Faulkner of Charlottesville, Virginia; son, Arthur P., daughter-in-law, Yemisrach, and grandson Samuel Metzner of Fort Washington, Maryland; and daughter, Rebecca Metzner, and son-in-law, R. Jeremy Clark, of Rome, Italy.