TY JOUR TI ANALYTICAL ESTIMATIONS OF THE EFFECTIVE THERMAL CONDUCTIVITY OF COMPOSITE MATERIALS - TEFLON WITH VARIOUS POWDER FILLERS KW filler KW heat conduction KW composite material KW concentration KW density JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Zarichnyak, Y.P. AU Ivanov, V.A. AU Romanov, N.N. PY 2014 IS 2014 PB Saint-Petersburg University of State Fire Service of Emercom of Russia