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Conclusions One key thread ran throughout the symposium—hands-on learning. In a panel discussion featuring Ambrose, Bondaryk, Bardes, and McMahon, all agreed that the biggest lack in students’ knowledge is a lack of practical application, a “lack of tinkering.” One way to develop hands-on learning is through homework; as Ambrose commented, “practice makes experts.” Tapping into everyday life is a...
Craig W. Brown is a senior scientist at Brooks Rand, Ltd.
For more information, contact A.B. Silverman, Eckert Seamans Cherin & Mellott, LL C, 600 Grant Street, 42nd Floor, Pittsburgh, Pennsylvania 15219; (412) 566-2077; fax (412) 566-6099; e-mail ARNIE@TELERAMA.LM.COM.
Steven F. McGrath is a research chemist and metallurgist and Lawrence C. Farrar is principal at Montech Associates.
Ultrafine grain sizes may be introduced into bulk samples by using the intense plastic straining technique equal-channel angular pressing. This article describes the principles of equal-channel angular pressing and demonstrates the application of this procedure to attain ultrafine grain sizes in an Al-3Mg solid-solution alloy and a commercial cast Al-Mg-Li-Zr alloy. Provided there is stability of...
A variety of new advanced composite materials are now available that provide great advantages over conventional materials for electronic packaging thermal control, including extremely high thermal conductivities (more than twice that of copper); low tailorable coefficients of thermal expansion; weight savings up to 80 percent; extremely high strength and stiffness; low-cost, net-shape fabrication...