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Phenolic resin syntactic foams

Description: Syntactic foams were prepared from blends of six phenolic resins and carbon microbubbles. The compressive strength of the phenolic resin foams is equivalent to the strength of foams made from a polyimide resin. Ammonia evolved during the cure diffuses rapidly and is not bound by the foam.
Date: June 1, 1980
Creator: McIlroy, H. M.
Partner: UNT Libraries Government Documents Department
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Syntactic foam supports. Final report

Description: Foams consisting of blends of a polyimide resin and glass microbubbles were prepared to provide thermal protection and energy absorption. With the selected type of glass microbubble, tests wre conducted to measure the effect of foam formulation, microbubble strength, and molding pressure on certain mechanical, thermal, and environmental properties.
Date: June 1, 1980
Creator: McIlroy, H. M.
Partner: UNT Libraries Government Documents Department
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Syntactic foam from silver coated microbubbles

Description: A low density syntactic foam made from a blend of a polyimide resin and silver coated glass microbubbles has been evaluated. Foams prepared from the silver coated glass microbubbles have more than twice the thermal conductivity of foams made from uncoated glass microbubbles, but the value is about 10 percent less than the measured thermal conductivity of carbom microbubble foams.
Date: February 1, 1978
Creator: McIlroy, H. M.
Partner: UNT Libraries Government Documents Department
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Glass microbubble composite foam

Description: Composite foams have been prepared from blends of Kerimid 601 polyimide resin and different types of glass microbubbles. Kerimid 601 is an addition type polyimide that offers many processing advantages over other types of polyimides. In an addition reaction, no volatiles are evolved during cure and weight loss and shrinkage during cure are small. Also, since the resin is a powder that melts and flows before curing, low density foams can be prepared. Processes were developed to blend, mold, and … more
Date: February 1, 1978
Creator: McIlroy, H. M.
Partner: UNT Libraries Government Documents Department
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Evaluation of cure cycles for syntactic foam

Description: The effects of cure and postcure conditions on the mechanical and thermal properties of a syntactic foam made from a polyimide resin and glass microbubbles were measured. Compressive properties at 25 and 150/sup 0/C and tensile properties at 25/sup 0/C are given for foams cured from 1.5 to 24 hours at 175 to 250/sup 0/C. Thermal properties were measured using differential scanning calorimetry, thermomechanical analysis, dielectric spectroscopy, and thermogravimetric analysis.
Date: November 1, 1978
Creator: McIlroy, H. M.
Partner: UNT Libraries Government Documents Department
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High temperature syntactic foam

Description: Resins from the polyimide, polybenzimidazole polyamide-imide, phenolic, silicone, and urethane families were formulated with glass microbubbles and carbon microspheres to produce low density, high strength syntactic foams. The polyimide and polybenzimidazole foams were the most thermally stable, but even the urethane exceeded the design goals. Foams with high and low thermal conductivity were developed and their material properties were measured. The low conductivity was achieved using glass mi… more
Date: July 1, 1977
Creator: McIlroy, H. M.
Partner: UNT Libraries Government Documents Department
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Evaluation of a High Temperature Syntactic Foam

Description: The mechanical, physical, and thermal properties of a glass microballoon-filled polybenzimidazole resin have been measured for test specimens molded by three manufacturing processes. The material, Imidite X386, has been shown to be a high strength, thermally stable structural foam.
Date: August 1, 1974
Creator: McIlroy, H. M.
Partner: UNT Libraries Government Documents Department
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Preliminary Study of Turbulent Flow in the Lower Plenum of a Gas-Cooled Reactor

Description: A preliminary study of the turbulent flow in a scaled model of a portion of the lower plenum of a gas-cooled advanced reactor concept has been conducted. The reactor is configured such that hot gases at various temperatures exit the coolant channels in the reactor core, where they empty into a lower plenum and mix together with a crossflow past vertical cylindrical support columns, then exit through an outlet duct. An accurate assessment of the flow behavior will be necessary prior to final des… more
Date: September 1, 2007
Creator: Guillen, D. P. & McIlroy, H. M., Jr.
Partner: UNT Libraries Government Documents Department
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Carbon Microsphere/Fiber/Polyimide Binder Syntactic Composite

Description: A manufacturing process for syntactic foal billets has been developed, and the progression through the mixing, blending, and molding operations is discussed. With basic requirements for a lightweight, thermally conductive, high strength foam, resolution was attained in a mix of a polyimide resin, carbon microspheres, and graphic fiber.
Date: September 1, 1976
Creator: McWhirter, R. J.; Crow, G. T.; Daniel, R. A. & McIlroy, H. M.
Partner: UNT Libraries Government Documents Department
open access

Advanced Computational Thermal Fluid Physics (CTFP) and Its Assessment for Light Water Reactors and Supercritical Reactors

Description: Background: The ultimate goal of the study is the improvement of predictive methods for safety analyses and design of Generation IV reactor systems such as supercritical water reactors (SCWR) for higher efficiency, improved performance and operation, design simplification, enhanced safety and reduced waste and cost. The objective of this Korean / US / laboratory / university collaboration of coupled fundamental computational and experimental studies is to develop the supporting knowledge needed… more
Date: October 2005
Creator: McEligot, D. M.; Condie, K. G.; McCreery, G. E.; McIlroy, H. M.; Pink, R. J.; Hochreiter, L. E. et al.
Partner: UNT Libraries Government Documents Department
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