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Far Infrared Reflectivity of Non-Metals

04/10/2009 10:48 AM

Does anyone know a source of information about far infrared reflectivity of non-metals?

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#1

Re: Far Infrared Reflectivity of non-metals

04/10/2009 11:27 AM

Would you be refering to emissivity?

Here's a guide that contains many non-metals:

Surface Material

Emissivity Coefficient
- ε -

Alloy 24ST Polished0.9
Alumina, Flame sprayed0.8
Aluminum Commercial sheet0.09
Aluminum Foil0.04
Aluminum Commercial Sheet0.09
Aluminum Heavily Oxidized0.2 - 0.31
Aluminum Highly Polished0.039 - 0.057
Aluminum Anodized0.77
Aluminum Rough0.07
Antimony, polished0.28 - 0.31
Asbestos board and paper0.94
Asphalt0.93
Basalt0.72
Beryllium0.18
Beryllium, Anodized0.9
Bismuth, bright0.34
Black Body Matt1.00
Black Parson Optical0.95
Black Silicone Paint0.93
Black Epoxy Paint0.89
Black Enamel Paint0.80
Brass Dull Plate0.22
Brass Rolled Plate Natural Surface0.06
Brass Polished0.03
Brass Oxidized 600

oC

0.6
Brick, red rough0.9
Brick, fireclay0.75
Cadmium0.02
Carbon, not oxidized0.81
Carbon filament0.77
Carbon pressed filled surface0.98
Cast Iron, newly turned0.44
Cast Iron, turned and heated0.60 - 0.70
Chromium polished0.08 - 0.36
Concrete0.85
Concrete tiles0.63
Cotton Cloth0.77
Copper electroplated0.03
Copper heated and covered with thick oxide layer0.78
Copper Polished0.023 - 0.052
Copper Nickel Alloy, polished0.059
Glass0.92
Glass, pyrex0.85 - 0.95
Gold pure and highly polished0.018 - 0.035
Granite0.45
Gypsum0.85
Ice0.97
Inconel X Oxidized0.71
Iron polished0.14 - 0.38
Iron, plate rusted red0.61
Iron, dark gray surface0.31
Iron, rough ingot0.87 - 0.95
Lampblack paint0.96
Lead pure unoxidized0.057 - 0.075
Lead Oxidized0.43
Magnesium Oxide0.20 - 0.55
Magnesium Polished0.07 - 0.13
Marble White0.95
Mercury liquid0.1
Mild Steel0.20 - 0.32
Molybdenum polished0.05 - 0.18
Nickel, elctroplated0.03
Nickel, polished0.072
Nickel, oxidized0.59 - 0.86
Nichrome wire, bright0.65 - 0.79
Paper offset0.55
Plaster0.98
Platinum, polished plate0.054 - 0.104
Porcelain, glazed0.92
Paint0.96
Paper0.93
Plaster0.92
Plastics0.91
Quarts glass0.93
Roofing paper0.91
Rubber, hard glossy plate0.94
Rubber Nat Hard0.91
Rubber Nat Soft0.86
Sand0.76
Sawdust0.75
Silicon Carbide0.83 - 0.96
Silver Polished0.02 - 0.03
Steel Oxidized0.79
Steel Polished0.07
Stainless Steel, weathered0.85
Stainless Steel, polished0.075
Stainless Steel, type 3010.54 - 0.63
Steel Galvanized Old0.88
Steel Galvanized New0.23
Tile0.97
Tin unoxidized0.04
Titanium polished0.19
Tungsten polished0.04
Tungsten aged filament0.032 - 0.35
Water0.95 - 0.963
Wood oak0.91
Wrought Iron0.94

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Related Topics

  • Material Properties Material properties - density, heat capacity, viscosity and more - for gases, fluids and solids
  • Thermodynamics The effects of work, heat and energy on a system

Related Documents

http://www.engineeringtoolbox.com/emissivity-coefficients-d_447.html

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Power-User

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#2

Re: Far Infrared Reflectivity of Non-Metals

04/10/2009 2:55 PM

Try this publication which has several references that should enable you to compile your own list of material vs reflectivity data: http://jjap.ipap.jp/link?JJAP/43/L343/

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#3

Re: Far Infrared Reflectivity of Non-Metals

05/04/2009 10:26 AM

Thanks to power user for an excellent suggestion.

Many confuse "emissivity" with "reflectivity". "Emissivity" is a comparison between a materials ability to radiate (emit) electromagnetic radiation at a given temperature, to the ability of a Planck black body to radiate at that same temperature. "Reflectivity" is the ability of a material to bounce electromagnetic radiation away, like a mirror does; in other words, to reflect, not emit. Emission can take place without incident radiation, reflection only exists when incident radiation occurs first.

I'm searching the journal, thanks again.

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