Phase Stability and Thermoelectric Properties of the
... phase stability of marcasite and pyrite phases as a function of pressure, we have calculated the cohesive energy of both the phases at pressures ranging from −3 GPa (expansion) to 9 GPa (compression) with a step size of 0.5 GPa. For each pressure, structural optimization of the unit cell has been ca ...
... phase stability of marcasite and pyrite phases as a function of pressure, we have calculated the cohesive energy of both the phases at pressures ranging from −3 GPa (expansion) to 9 GPa (compression) with a step size of 0.5 GPa. For each pressure, structural optimization of the unit cell has been ca ...
Materials for Optical Systems
... copper (Cu), molybdenum (Mo), silicon (Si), or SiC are usually specified. These mirrors are fabricated with internal cooling channels, the complexity of which depends on the incident heat flux. Cooled mirrors have also been successfully fabricated with internal heat pipes. For lower heat loads, the ...
... copper (Cu), molybdenum (Mo), silicon (Si), or SiC are usually specified. These mirrors are fabricated with internal cooling channels, the complexity of which depends on the incident heat flux. Cooled mirrors have also been successfully fabricated with internal heat pipes. For lower heat loads, the ...
Thermodynamics Institute of Lifelong Learning, University of Delhi
... Path: The sequence of steps taken by a system during a thermodynamic process starting from the initial state, through an intermediate state to the final state is known as a path. The path can consist of a single or more steps. Classification of Processes Based upon Path Depending upon the path follo ...
... Path: The sequence of steps taken by a system during a thermodynamic process starting from the initial state, through an intermediate state to the final state is known as a path. The path can consist of a single or more steps. Classification of Processes Based upon Path Depending upon the path follo ...
Heat transfer physics
Heat transfer physics describes the kinetics of energy storage, transport, and transformation by principal energy carriers: phonons (lattice vibration waves), electrons, fluid particles, and photons. Heat is energy stored in temperature-dependent motion of particles including electrons, atomic nuclei, individual atoms, and molecules. Heat is transferred to and from matter by the principal energy carriers. The state of energy stored within matter, or transported by the carriers, is described by a combination of classical and quantum statistical mechanics. The energy is also transformed (converted) among various carriers.The heat transfer processes (or kinetics) are governed by the rates at which various related physical phenomena occur, such as (for example) the rate of particle collisions in classical mechanics. These various states and kinetics determine the heat transfer, i.e., the net rate of energy storage or transport. Governing these process from the atomic level (atom or molecule length scale) to macroscale are the laws of thermodynamics, including conservation of energy.