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in creator/contributor: "Guthrie, S.E."  
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The development of lightweight hydride alloys based on magnesium

Description: The development of a magnesium based hydride material is explored for use as a lightweight hydrogen storage medium. It is found that the vapor transport of magnesium during hydrogen uptake greatly influences the surface and hydride reactions in these alloys. This is exploited by purposely forming near-surface phases of Mg{sub 2}Ni on bulk Mg-Al-Zn alloys which result in improved hydrogen adsorption and desorption behavior. Conditions were found where these near-surface reactions yielded a compl… more
Date: February 1, 1996
Creator: Guthrie, S. E.; Thomas, G. J.; Yang, N. Y. C. & Bauer, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Impurity effects on the adhesion of aluminum films on sapphire substrates

Description: The adhesion of aluminum (Al) films onto sapphire substrates in the presence of controlled contaminants is being investigated. In this study, adhesion strength is evaluated by continuous scratch and nanoindentation tests to induce delamination of the Al film from the sapphire substrate. If delamination blisters or spallations can be induced, then fracture mechanics based models can be used to calculate the fracture energy or work of adhesion based on the radius of the blister. Initial specimens… more
Date: May 1, 1998
Creator: Schneider, J. A.; Guthrie, S. E.; Clift, W. M.; Moody, N. R. & Kriese, M. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A novel process for fabricating Mg{sub 2}Ni

Description: The alloy, Mg{sub 2}Ni, has a number of desirable properties for use as a lightweight reversible hydride for hydrogen storage applications. It has relatively good storage capacity (3.6 wt.% H{sub 2} as Mg{sub 2}NiH{sub 4}) and a higher plateau pressure and lower operating temperature than MgH{sub 2}. A novel low temperature (<300 C) process is reported that does not require melting of the alloy constituents to achieve a single phase alloy of Mg{sub 2}Ni. The process results in smaller particle … more
Date: May 1, 1998
Creator: Guthrie, S. E. & Thomas, G. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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