Emissivity at elevated temperature
Emissivity at elevated temperature
(OP)
I am looking for some data on emissivity of anodized aluminum at elevated temperature. Specifically of 6061-T0 with a 64 micro-in finish and hard annodized but not dyed and opperating at 500 deg c. If anyone could provide a resource for this type of data I would really appreciate it.





RE: Emissivity at elevated temperature
What wavelength?
Todd
www.oxilume.com
RE: Emissivity at elevated temperature
RE: Emissivity at elevated temperature
Are you using the anodized aluminum as an IR reflector, IR emitter, what, with respect to radiant heat transfer?
I have the information or source of information you need, but please be more specific without disclosing confidential information.
Todd
www.oxilume.com
RE: Emissivity at elevated temperature
Thanks
Derek
RE: Emissivity at elevated temperature
Try this link;
http://www.coleparmer.com/techinfo/techinfo.asp?openlist=D,E,C,D8&htmlfile=Emissivity.htm&Title=IR%3A+Emissivity+of+Specific+Materials#anchor2
Todd
www.oxilume.com
RE: Emissivity at elevated temperature
the data you referenced is not for anodized aluminum. Anodizing will raise the emmissivity to over 0.85 at long wavelengths.
RE: Emissivity at elevated temperature
Todd
www.oxilume.com
RE: Emissivity at elevated temperature
Gives emissivity values for various types of anodized aluminum - no mention of temperature at which the measurements were made:
Anodized Aluminum
Black0.82
Black (2nd Sample)0.86
Blue0.87
Blue (2nd Sample)0.82
Brown0.86
Chromic0.56
Clear0.76
Clear (2nd Sample)0.84
Green0.88
Gold0.82
Plain0.04
Red0.88
Sulphuric0.87
Yellow0.87
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