NDLI: Experimental studies of the formation/deposition of sodium sulfate in/from combustion gases. [hot corrosion of gas turbine engine components

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Experimental studies of the formation/deposition of sodium sulfate in/from combustion gases. [hot corrosion of gas turbine engine components

Content Provider	NASA Technical Reports Server (NTRS)
Author	Rosner, D. E.
Copyright Year	1979
Description	An optical polarization (ellipsometric) technique was developed for measuring rapidly growing and evaporating transparent liquid condensate films (e.g., boric oxide) on solid surfaces exposed to combustion product gases. Results for the B2O3 deposition rate from BCl3-seeded propane/air flames are shown to agree well with the results of earlier interference measurements, and also with theoretical CVD predictions. Evaporation rates (from platinum ribbons into seeded propane air flames) are estimated using the polarization technique. It appears that, compared with the interference method, the polarization technique places less stringent requirements on surface quality, which may justify the added optical components needed for such measurements. It is concluded that the complementary optical methods of polarization (ellipsometry) and interference hold considerable promise for application to the rapid measurement of condensation and evaporation rates in high temperature (e.g., combustion product) environments.
File Size	517277
Page Count	11
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19800006872
Archival Resource Key	ark:/13960/t3xt0hm0j
Language	English
Publisher Date	1979-12-01
Access Restriction	Open
Subject Keyword	Aircraft Propulsion And Power Wall Temperature Metal Oxides Optical Measurement Polarization Characteristics Light Scattering Gas Turbine Engines Combustion Products Experiment Design High Temperature Environments Hot Corrosion Sodium Sulfates Deposition Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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