caa a22 4500 465755593 CHVBK 20180323111846.0 cr unu---uuuuu 170327e19900701xx s 000 0 eng 10.1007/BF01184331 doi (NATIONALLICENCE)springer-10.1007/BF01184331 Klemens P. Department of Physics and Institute of Materials Science, University of Connecticut, 06268, Storrs, Connecticut, USA aut Theoretical considerations of the effects of rapid heating of solids on their apparent thermal properties [Elektronische Daten] [P. Klemens] The conditions are investigated for thermal properties to change from their normal values when solids are heated very rapidly. The properties considered are specific heat, thermal expansion, thermal conductivity, and thermal diffusivity. Over times which may be as long as a microsecond, the heated solid is unable to expand: the appropriate values of specific heat and thermal conductivity are then those at constant volume rather than constant pressure. In those alloys where thermal equilibrium requires diffusion, its establishment is delayed, and if solids do not have time to expand, the diffusion coefficient is reduced. For heating times below nanoseconds, the electrons and the lattice may be at different temperatures, particularly if the energy is initially imparted to the electrons. The temperature of the electron gas of metals may then approach the degenerary temperature. The apparent specific heat of a decoupled system departs from the steady-state value in a manner which depends on how temperature is measured. In such a decoupled system the concepts of thermal conductivity and thermal diffusivity must be used with care. Plenum Publishing Corporation, 1990 diffusion nationallicence electrons nationallicence expansion nationallicence phonons nationallicence rapid heating nationallicence relaxation times nationallicence specific heat nationallicence thermal conductivity nationallicence International Journal of Thermophysics Kluwer Academic Publishers-Plenum Publishers 11/4(1990-07-01), 607-618 0195-928X 11:4<607 1990 11 10765 https://doi.org/10.1007/BF01184331 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01184331 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Klemens P. Department of Physics and Institute of Materials Science, University of Connecticut, 06268, Storrs, Connecticut, USA aut NATIONALLICENCE 773 0- International Journal of Thermophysics Kluwer Academic Publishers-Plenum Publishers 11/4(1990-07-01), 607-618 0195-928X 11:4<607 1990 11 10765 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer