Solid-melt transition causing

Yet another theory has emerged recently from the field of nanotribology. Surface force apparatus studies, combined with molecular dynamics simulations, of simplified model systems, such as molecularly flat mica separated by a few molecules thick lubricant layers, have identified a solid-melt transition as the cause for stick-slip motion to occur for such confined liquids (18, 106, 111-113, 144-149). A similarly confined liquid can be found in macroscopic friction systems in the boundary lubrication regime wherein thin lubricant layers are trapped between surface asperities in very close proximity. 

Upon slow heating of the frozen system, about the same curve results in the opposite direction, but now the equilibrium lines will be followed. Hence, the dips near D and B will not occur. Neither will nucleation cause delay of melting, since initiation of solid-liquid transitions generally needs negligible overheating (Sections 14.1 and 14.2.2). 

In thermogravimetry, the sample is heated, often at about 10°C min in a thermobalance instrument as described below. Only those changes that affect the mass of the sample will affect the measurements, so that condensed phase changes such as melting or crystalline transitions cause no mass change. The rate of change of mass, dm/dt depends on the amount of sample present, and the reaction rate constant at the experimental temperature. With solids it is... 

In this section, three models will be presented that don t force the reorganization of the solid bed and use screw rotation physics. These screw rotation models cause a significant portion of the energy dissipation to occur in the melt film between the solid bed and screw root. These models are for a conventional transition section, for a barrier melting section, and for a special case referred to as one-dlmenslonal melting. 

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