Premium
Correction on : Laboratory study of heat transfer through thin layers of casting slag: minimization of the slag/probe contact resistance
Author(s) -
Holzhauser JörgFriedrich,
Spitzer KarlHeinz,
Schwerdtfeger Klaus
Publication year - 2001
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.200100118
Subject(s) - slag (welding) , casting , materials science , electrical conductor , heat transfer , thermal conductivity , heat flux , thermal conduction , thermal contact , continuous casting , composite material , metallurgy , copper , contact resistance , refractive index , thermodynamics , optoelectronics , physics , layer (electronics)
The heat flux densities through thin layers of casting slag have been measured with a soft cooling heat flux probe which made smooth probe/slag interfaces. Thus the contact resistance was avoided. The evaluated effective thermal conductivities were applied, together with the data on the contact resistance, to compute the “system conductivities” existing in the continuous casting “system” water cooled copper/slag/strand. The refractive index and absorption spectrum were measured and used to deduce functions for the radiative and conductive (phonon) conductivities. Although precise values could not be obtained, due to the many assumptions involved, the data indicate that the conductive conductivity does not change drastically at high temperatures and on melting.