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Chapter and Conference Paper
Electron Microscopy Analysis of AlGaN/GaN Nanowires Grown by Catalyst-Assisted Molecular Beam Epitaxy
Scanning transmission electron microscopy has been used to investigate the composition of nickel seeds which promote the columnar growth of AlGaN / GaN nanowires deposited by molecular beam epitaxy (MBE) on sa...
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Chapter and Conference Paper
EDX and linescan modelling for core/shell GaN/AlGaN nanowire analysis
The growth of gallium nitride nanowires (NW) using nickel seeds to promote axial growth on sapphire substrates has previously been demonstrated [1]. Furthermore it has been shown that control of preferential a...
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Chapter and Conference Paper
The nucleation structure for cracks in AlGaN epitaxial layers
When an epitaxial layer is under tensile strain due to lattice mismatch, cracks are expected to form above a critical thickness. In the case of Group III nitrides grown on the sapphire (0001) plane, the epitax...
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Article
Fabrication of epitaxial III-nitride cantilevers on silicon (1 1 1) substrates
The molecular beam epitaxy of AlGaN/GaN epilayers on silicon (1 1 1) using an aluminum nitride buffer layer, and subsequent fabrication of free standing III-nitride cantilevers on Si(1 1 1) has been investigat...
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Article
Orientation of cracks in AlGaN epilayers with sapphire substrates
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Chapter and Conference Paper
High-Altitude Explosion Properties of the Hydrogen-Oxygen System in Vented Tanks
One of the problems which concerns the man-rating of a vehicle such as the Saturn is the evaluation of the explosion or detonation hazard arising in the interstage from the presence of liquid and/or solid hydr...
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Article
Book reviews
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Chapter
Factor of Safety Considerations in Reinforced Soil Structures
A comparison is given of the conventional method of design of reinforced soil structures, involving the use of overall or ‘lump’ factors of safety, with an alternative method which allows a more realistic asse...
