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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Study of neutronic and creep properties of Kanthal APMT for advanced fuel cladding applications
Not Available
Advanced Characterization of Irradiated Silicon Carbide Claddings [Slides]
The report is to present at GA's workshop for SiC PIE characterization, including XCT, FIB, TEM and APT analysis.
Engineering Core-Clad Structures in Single-Crystal Sapphire Fibers via Dopant Segregation
This poster was displayed at UPISC. It details NETL advancements in single crystal optical fiber.
Tailored Compositionally Complex Claddings for Enhanced Pulsed Power Performance
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Neutron Irradiation and Postirradiation Examination of Chromium-Coated Framatome M5 Cladding
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Connecting Steady State and Transient Deformation Mechanisms of Zircaloy-4 Fuel Cladding
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Advanced Fuels Campaign Plan to Support the Establishment of a Cladding Time-at-Temperature Criteria
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Development of ductile cladding for TD-nickel turbine vane applications Final report, 5 Jul. 1967 - 31 Dec. 1968
Slurry technique for applying NI-CR-AL-SI coatings to TD-NI
Ultrasonic control of stainless steel clad tubes of the El4 reactor
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Improved method for cladding the inside of metal tubes
Creep characteristics of molybdenum at high temperature and stress are utilized to compress tungsten foil liner against inner surface of tantalum alloy cylinder to form bond at interface. Temperature and pressure can be accurately controlled and size of workpiece is limited only by furnace size.
Radiation from circumferential slots on plasma-clad cones
Slot antenna radiation pattern distortion produced by boundary layer plasma sheath around conical reentry vehicles
Use of high conductivity cladding material on D-shaped coolant passages in nozzles to reduce tube-wall crest temperatures
Analysis of wall temperatures in rocket engine cooling system using D-shaped copper and stainless steel tubes for reduction of tube-wall crest temperatures
Evaluation of clad scintillating light pipes
Arrays of fibers made of scintillating material were used as position-sensitive detectors or hodoscopes for beam-finding at ion accelerators. Experiments were made with alpha's from an Am241 source incident upon one end of the fiber, the other end being viewed with a photomultiplier tube. The scintillation light was not detected in any of the fibers tested beyond about 5 cm. The effective useful lengths for detection of relativistic heavy ions were given.
Investigation of semiconductor clad optical waveguides
Glass waveguides are studied because of the ease and economy of fabricating devices in glass. All calculations are based on the assumption of a glass guide and substrate, but the effects being studied will occur on other materials if the proper refractive indices are used in the calculations.
Effect of temperatures from -70 to 600 F on strength of adhesive-bonded lap shear specimens of clad 24S-T3 Aluminum alloy and of cotton-and glass-fabric plastic laminates
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Guided waves in cladded composite tubes
The objectives of this program are as follows: modelling of dynamics of composite tubular space structure truss members; and utilization of ultrasonic waves as probes for material and defect characterization. This discussion is presented in viewgraph format.
Development of Core Cladding Fabrication Techniques for Phase I Fission Propulsion Systems
Phase I fission propulsion systems focus on safety, timely development, and affordability. Prototype and flight units can be tested at full thrust, using resistance heaters to closely simulate heat from a fission reaction. In Phase I ground testing, one goal is to establish a reliable and affordable manufacturing technique for fabricating a flight-like core. A refractory metal (Mo) has been suggested for the core substrate, primarily due to the existence of a significant database for Mo/LJ02 fuel. The core can be fabricated by bundling Mo tubes with a bonding system that meets preliminary test goals. These criteria include materials compatibility, ability to maintain thermal and structural integrity during 10,000 hours of operation, and fabrication with existing facilities. This paper describes an effort to investigate several fabrication techniques in a cost-effective manner. First, inexpensive materials were tested at low temperatures to determine the relative effectiveness of such techniques as welding, brazing, plating, and vacuum plasma spraying (VPSing). Promising techniques were chosen for further evaluation, including thermal and structural studies, using ceramic tubing at intermediate temperatures. The most desirable technique will be tested on actual Mo tubing at anticipated operating temperatures. This work is being performed by the National Aeronautics & Space Administration (NASA) at George C. Marshall Space Flight Center (MSFC), Los Alamos National Laboratory (LANL), and Advanced Methods & Materials (AMM), Inc.