Results 51 to 60 of about 1,841 (152)

Advances in turbine blade temperature measurements [PDF]

open access: yes
Radiation pyrometry principles and imaging methods like photography and photoelectric scanning are combined to make accurate research quality temperature measurements on turbine airfoils.
Pollack, F. G.
core   +1 more source

Fast optical pyrometry [PDF]

open access: yes
Design and operation of accurate millisecond and microsecond resolution optical pyrometers developed at the National Bureau of Standards during the last two decades are described.
Cezairliyan, Ared
core   +1 more source

New reactor dedicated to in operando studies of model catalysts by means of surface x-ray diffraction and grazing incidence small angle x-ray scattering [PDF]

open access: yes, 2007
International audienceA new experimental setup has been developed to enable in situ studies of catalyst surfaces during chemical reactions by means of surface x-ray diffraction (SXRD) and grazing incidence small angle x-ray scattering.
Bailly, Aude   +13 more
core   +3 more sources

An update of commercial infrared sensing and imaging instruments [PDF]

open access: yes
A classification of infrared sensing instruments by type and application, listing commercially available instruments, from single point thermal probes to on-line control sensors, to high speed, high resolution imaging systems is given.
Kaplan, Herbert
core   +1 more source

Digital temperature and velocity control of mach 0.3 atmospheric pressure durability testing burner rigs in long time, unattended cyclic testing [PDF]

open access: yes
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.
core   +1 more source

Arcjet Testing and Thermal Model Development for Multilayer Felt Reusable Surface Insulation [PDF]

open access: yes, 2012
Felt Reusable Surface Insulation was used extensively on leeward external surfaces of the Shuttle Orbiter, where the material is reusable for temperatures up to 670 K.
Milos, Frank S.   +2 more
core   +1 more source

Tribological properties of graphite-fiber-reinforced, partially fluorinated polyimide composites [PDF]

open access: yes
Graphite-fiber-reinforced polyimide (GFRPI) composites were formulated from three new partially fluorinated polyimides and three types of graphite fiber. Nine composites were molded into pins and evaluated in a pin-on-disk tribometer.
Fusaro, R. L., Hady, W. F.
core   +1 more source

NDE: An effective approach to improved reliability and safety. A technology survey [PDF]

open access: yes
Technical abstracts are presented for about 100 significant documents relating to nondestructive testing of aircraft structures or related structural testing and the reliability of the more commonly used evaluation methods.
Carpenter, J. L., Jr., Stuhrke, W. F.
core   +1 more source

Testing and Characterization of CMC Combustor Liners [PDF]

open access: yes
Multiple combustor liner applications, both segmented and fully annular designs, have been configured for exposure in NASA's High Pressure Burner Rig (HPBR).
Robinson, R. Craig, Verrilli, Michael J.
core   +1 more source

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