Direct emissivity measurements on liquids and corrections to multi-color pyrometers [PDF]
Optical pyrometry provides a means for non-contact temperature measurements whose accuracy depends on the accuracy with which specimen emittance is known.
Nordine, Paul C., Schiffman, Robert A.
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Dendritic growth and structure of undercooled nickel base alloys [PDF]
The principal objectives of this overall investigation are to: study means for obtaining high undercooling in levitation melted droplets, and study structures produced upon the solidification of these undercooled specimens.
Flemings, M. C., Shiohara, Y.
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Containerless high temperature property measurements by atomic fluorescence [PDF]
Containerless high temperature processing and material property measurements are discussed. Researchers developed methods for non-contact suspension, heating, and property measurement for materials at temperatures up to 3,680K, the melting point of ...
Nordine, Paul C., Shiffman, Robert A.
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A 3D-Printed Ceramics Innovative Firing Technique: A Numerical and Experimental Study. [PDF]
Materials (Basel), 2023 Santos T +9 more
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Digital temperature and velocity control of mach 0.3 atmospheric pressure durability testing burner rigs in long time, unattended cyclic testing [PDF]
Hardware and software were developed to implement the hybrid digital control of two Jet A-1 fueled Mach 0.3 burners from startup to completion of a preset number of hot corrosion flame durability cycle tests of materials at 1652 F.
Deadmore, D. L.
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High reliability sheathed, beryllia insulated, tungsten-rhenium alloy thermocouple assemblies; their fabrication and EMF stability [PDF]
Tantalum sheathed, BeO insulated, W-3% Re/W-25% Re thermocouple assemblies were fabricated and their emf drift determined during 2059 hours of exposure at 2073 K in a gaseous helium environment.
Burns, G. W. +2 more
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Measurement of transient strain and surface temperature on simulated turbine blades using noncontacting techniques [PDF]
Noncontacting techniques were used to measure strain and temperature in thermally cycled simulated turbine blades. An electro-optical extensometer was used to measure the displacement between parallel targets mounted on the leading edge of the blades ...
Calfo, F. D., Pollack, F. G.
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Multiwavelength pyrometry for nongray surfaces in the presence of interfering radiation [PDF]
A NASA developed multiwavelength pyrometry technique for nongray surfaces was extended to also measure surface temperature in the presence of interfering radiation.
Ng, Daniel
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Development of advanced Czochralski growth process to produce low cost 150 kg silicon ingots from a single crucible for technology readiness [PDF]
Six growth runs used the Kayex-Hameo Automatic Games Logic (AGILE) computer based system for growth from larger melts in the Mod CG2000. The implementation of the melt pyrometer sensor allowed for dip temperature monitoring and usage by the operator ...
Lane, R. L.
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Exploratory investigation of the effect of nylon grain size on ablation of phenolic nylon [PDF]
Exploratory investigation of nylon grain size effect on ablation of phenolic ...
Crouch, R. K., Walberg, G. D.
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