Post on 14-Oct-2015
description
Thermal diffusivity of selected materials and substances[8]
MaterialThermal diffusivity(m/s)Thermal diffusivity(mm/s)
Pyrolytic graphite, parallel to layers1.22 1031220
Silver, pure (99.9%)1.6563 104165.63
Gold1.27 104[9]127
Copperat 25C1.11 104[10]111
Aluminium8.418 10584.18
Al-10Si-Mn-Mg (Silafont 36) at 20C74.2 106[11]74.2
Aluminum 6061-T6 Alloy6.4 105[9]64
Al-5Mg-2Si-Mn (Magsimal-59) at 20C44.0 106[12]44.0
Steel, 1% carbon1.172 10511.72
Steel, stainless 304A at 27C4.2 106[9]4.2
Steel, stainless 310 at 25C3.352 106[13]3.352
Inconel 600at 25C3.428 106[14]3.428
Molybdenum(99.95%) at 25C54.3 106[15]54.3
Iron2.3 105[9]23
Silicon8.8 105[9]88
Quartz1.4 106[9]1.4
Carbon/carbon composite at 25C216.5 106[10]216.5
Aluminium oxide (polycrystalline)1.20 10512.0
Silicon Dioxide (Polycrystalline)8.3 107[9]0.83
Si3N4withCNTs26C9.142 106[16]9.142
Si3N4withoutCNTs26C8.605 106[16]8.605
PC(Polycarbonate) at 25C0.144 106[17]0.144
PP(Polypropylene) at 25C0.096 106[17]0.096
Paraffin at 25C0.081 106[17]0.081
PVC(Polyvinyl Chloride)8 108[9]0.08
PTFE(Polytetrafluorethylene) at 25C0.124 106[18]0.124
Water at 25C0.143 106[17]0.143
Alcohol7 108[9]0.07
Water vapour (1 atm, 400 K)2.338 10523.38
Air (300 K)1.9 105[9]19
Argon (300 K, 1 atm)2.2105[19]22
Helium (300 K, 1 atm)1.9104[19]190
Hydrogen (300 K, 1 atm)1.6104[19]160
Nitrogen (300 K, 1 atm)2.2105[19]22
Pyrolytic graphite, normal to layers3.6 1063.6
Sandstone1.121.19 1061.15
Tin4.0 105[9]40
Brick, common5.2 1070.52
Brick, adobe2.7 1070.27
Glass, window3.4 1070.34
Rubber1.3 107[citation needed]0.13
Nylon9 1080.09
Wood (Yellow Pine)8.2 1080.082
Oil, engine (saturated liquid, 100 C)7.38 1080.0738