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Exceptional increase in the creep life of magnesium rare-earth alloys due to localized bond stiffening
Article describes study in which researchers attribute the 600% increase in creep life in a prototypical Mg–rare earth (RE)–Zn alloy to multiple mechanisms caused by RE–Zn bonding—stabilization of a large volume fraction of strengthening precipitates on slip planes, increase in vacancy diffusion barrier, reduction in activated cross-slip, and enhancement of covalent character and bond strength around Zn solutes along the c-axis of Mg using atomic-scale characterization and first principles calculations.
Date:
December 8, 2017
Creator:
Choudhuri, Deep; Srivilliputhur, Srinivasan; Gibson, Mark A.; Zheng, Yufeng; Jaeger, David L.; Fraser, Hamish L. et al.
System:
The UNT Digital Library
Spontaneous coordinated activity in cultured networks: analysis of multiple ignition sites, primary circuits, and burst phase delay distributions
This article discusses an analysis of multiple ignition sites, primary circuits, and burst phase delay distributions.
Date:
December 8, 2007
Creator:
Ham, Michael I.; Bettencourt, Luis; McDaniel, Floyd Del. (Floyd Delbert), 1942- & Gross, Guenter W.
System:
The UNT Digital Library