Oxidation plays a tremendous role in the long-term performance of metals. As an important lightweight metal for industrial applications, magnesium suffers from its high reactivity with oxygen and increased evaporation...
This work was performed,in part,at the Center for Integrated Nanotechnologies,the U.S.Department of Energy,Office of Basic Energy Sciences user facility.Sandia National Laboratories is a multi-program laboratory operated by Sandia Corporation,a Lockheed-Martin Company,for the U.S.Department of Energy under Contract No.DE-AC04-94AL85000;JL would like to acknowledge support by Honda Research Institute USA,NSF CMMI-0728069,AFOSR,and ONR N00014-05-1-0504;J.Y.H.would like to thank Dr.Ping Lu at Sandia National Laboratories for conducting the HRTEM image simulations.
An individual suspended graphene sheet was connected to a scanning tunneling microscopy probe inside a transmission electron microscope,and Joule heated to high temperatures.At high temperatures and under electron bea...