RT Journal Article ID 77fc9a757b9accdf A1 Paderin, Leonid Yakovlevich A1 Prusov, Boris Viktorovich A1 Tokarev, Oleg Dmitrievich T1 INVESTIGATION OF HEAT CONDUCTIVITY OF POROUS THERMAL INSULATION MATERIALS AT HIGH TEMPERATURES JF TsAGI Science Journal JO TSAGI YR 2011 FD 2011-12-06 VO 42 IS 4 SP 533 OP 542 K1 heat insulated materials K1 temperature K1 heat flux K1 effective heat conductivity AB This paper is dedicated to the improvement of the method and facility modernization for increasing the maximum temperature in investigations of heat conductivity of porous thermal insulated materials. In the framework of facility modernization a new measuring device is developed using modern high-temperature materials. These actions permitted us to increase the maximum temperature of the test samples at the measurements of the effective heat conductivity coefficient from 1500 K up to 1825 K. The measurements were performed under vacuum and gaseous media conditions in the pressure range of p =1− 105 Pa. The test results are presented as the temperature and barometric functions of effective heat conductivity of the investigated materials. PB Begell House LK https://www.dl.begellhouse.com/journals/58618e1439159b1f,3ecb04f71570e159,77fc9a757b9accdf.html