R.G. Burton

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For eutectics of Ga/In/Sn, Ga/In/Zn, and Ga/In/Sn/Zn, room-temperature measurements are reported for viscosity and resistivity. Contact resistance, friction, and film thickness are calculated for tilted pads using these fluids as lubricants. Relative magnitudes of magnetohydrodynamic energy dissipation in an annulus is discussed in terms of a figure of(More)
Friction, wear, and resistivity are reported for composite specimens made of copper fibres in a vitreous or glassy carbon matrix. The resistivity and friction are shown to be comparable to reported values for typical copper graphite specimens, and the wear is shown to be exceptionally low. Although the vitreous carbon is hard, it does not appear to act as(More)
The increase of contact resistance is calculated for brush contact on a slipring, segmented into a sequence of rectangular contact patches, evenly spaced. This approximates the condition of liquid-metal-wetted brushes where uniform contact may occur over the rectangular brush footprint. A Fourier series expansion shows that for wide spacing of the(More)
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