Effects Of Polishing On 10.6 On Light Absorption Of Aluminum And Titanium Alloys

T. T. Saito; J. G. Gowan

doi:10.1117/12.954512

15 January 1976 Effects Of Polishing On 10.6 On Light Absorption Of Aluminum And Titanium Alloys

T. T. Saito, J. G. Gowan

Proceedings Volume 0065, Design, Manufacture and Application of Metal Optics; (1976) https://doi.org/10.1117/12.954512
Event: 19th Annual Technical Symposium, 1975, San Diego, United States

Abstract

This study adds evidence to the hypothesis that polishing can degrade the IR absorption of bare metal surfaces. The alloys of Al and Ti as well as the metallographic polishing techniques are described. Characterization of the samples included 10.6 pm absorption and reflectivity, total-integrated-scatter at 0.6 01, Nomarski microscopy,Taleystep surface roughness, Knoop hardness, and an x-ray nondispersive analysis attachment to a scanning electron microscope. The titanium's hardness did not significantly change during polishing and the absorption was reasonably correlated to the surface roughness for a range of 0.127 to 0.16 and 28 to 71 Å (rms) respectively. The absorption of the Al samples was not correlated to its roughness. The best polished sample had an absorption of 0.053 as compared to an unpolished (as received) sample which had an absorption of 0.022. The absorption of aluminum was well correlated to the microhardness indicating that the increase in absorption during the polishing procedure may be due to work hardening.

Citation Download Citation

T. T. Saito and J. G. Gowan "Effects Of Polishing On 10.6 On Light Absorption Of Aluminum And Titanium Alloys", Proc. SPIE 0065, Design, Manufacture and Application of Metal Optics, (15 January 1976); https://doi.org/10.1117/12.954512

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