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There are a total of 28 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
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Chemical State of Surface Oxygen on Carbon and Its Effects on the Capacity of the Carbon Anode in a Lithium-Ion Battery Investigated
Author(s): Hung, Ching-Cheh
Abstract: In a lithium-ion battery, the lithium-storage capacity of the carbon anode is greatly affected by a surface layer formed during the first half cycle of lithium insertion and release into and out of the carbon anode. The ...
NASA Center: Glenn Research Center
Publication Year: 2001
Added to NTRS: 2008-06-02
Document ID: 20050196603
Industrial applications of graphite fluoride fibers
Author(s): Hung, Ching-Cheh; Kucera, Donald
Abstract: Based on fluorination technology developed during 1934 to 1959, and the fiber technology developed during the 1970s, a new process was developed to produce graphite fluoride fibers. In the process, pitch based graphitized ...
NASA Center: Glenn Research Center
Publication Year: 1991
Added to NTRS: 2008-05-31
Accession Number: 91N23040; Document ID: 19910013727
Apparent Relations Between Solar Activity and Solar Tides Caused by the Planets
Author(s): Hung, Ching-Cheh
Abstract: A solar storm is a storm of ions and electrons from the Sun. Large solar storms are usually preceded by solar flares, phenomena that can be characterized quantitatively from Earth. Twenty-five of the thirty-eight largest ...
NASA Center: Glenn Research Center
Publication Year: 2007
Added to NTRS: 2007-10-23
Document ID: 20070025111; Report Number: E-15714-2, NASA/TM-2007-214817
Effects of Carbon Structure and Surface Oxygen on the Carbon's Performance as the Anode in Lithium-Ion Battery Determined
Author(s): Hung, Ching-Cheh
Abstract: Four carbon materials (C1, C2, C3, and C4) were tested electrochemically at the NASA Glenn Research Center at Lewis Field to determine their performance in lithium-ion batteries. They were formed as shown in the figure. This ...
NASA Center: Glenn Research Center
Publication Year: 2000
Added to NTRS: 2007-02-07
Document ID: 20050192349
Synthesis, physical and chemical properties, and potential applications of graphite fluoride fibers
Author(s): Hung, Ching-Cheh; Long, Martin; Stahl, Mark
Abstract: Graphite fluoride fibers can be produced by fluorinating pristine or intercalated graphite fibers. The higher the degree of graphitization of the fibers, the higher the temperature needed to reach the same degree of ...
NASA Center: Glenn Research Center
Publication Year: 1987
Added to NTRS: 2005-10-13
Accession Number: 87N26232; Document ID: 19870016799; Report Number: E-3699, NAS 1.15:100156, NASA-TM-100156
Effects of sequential treatment with fluorine and bromine on graphite fibers
Author(s): Hung, Ching-Cheh; Stahl, Mark; Maciag, Carolyn; Slabe, Melissa
Abstract: Three pitch based graphite fibers with different degrees of graphitization and one polyacryonitrile (PAN) based carbon fiber from Amoco Corporation were treated with 1 atm, room temperature fluorine gas for 90 hrs. ...
NASA Center: Glenn Research Center
Publication Year: 1987
Added to NTRS: 2005-10-13
Accession Number: 87N24574; Document ID: 19870015141; Report Number: E-3644, NAS 1.15:100106, NASA-TM-100106
Graphite/Epoxy Deicing Heater
Author(s): Hung, Ching-Cheh; Dillehay, Michael E.; Stahl, Mark
Abstract: Heat applied close to surface protected. One ply of highly electrically- and thermally-conductive brominated-graphite fiber composite laminated between two plies of electrically-insulating composite material, with michel ...
NASA Center: Glenn Research Center
Publication Year: 1988
Added to NTRS: 2005-09-30
Accession Number: 88B10377; Document ID: 19880000377; Report Number: LEW-14551
Experiments On Transparent Conductive Films For Spacecraft
Author(s): Perez-Davis, Marla E.; Rutledge, Sharon K.; De Groh, Kim K.; Hung, Ching-Cheh; Malave-Sanabria, Tania; Hambourger, Paul; Roig, David
Abstract: Report describes experiments on thin, transparent, electrically conductive films made, variously, of indium tin oxide covered by magnesium fluoride (ITO/MgF2), aluminum-doped zinc oxide (AZO), or pure zinc oxide (ZnO). Films ...
NASA Center: Glenn Research Center
Publication Year: 1995
Added to NTRS: 2005-09-30
Accession Number: 95B10669; Document ID: 19950071273; Report Number: LEW-16206
Graphite Fluoride Fiber Composites For Heat Sinking
Author(s): Hung, Ching-Cheh; Long, Martin; Stahl, Mark
Abstract: Graphite fluoride fiber/polymer composite materials consist of graphite fluoride fibers in epoxy, polytetrafluoroethylene, or polyimide resin. Combines high electrical resistivity with high thermal conductivity and solves ...
NASA Center: Glenn Research Center
Publication Year: 1989
Added to NTRS: 2005-09-30
Accession Number: 89B10230; Document ID: 19890000230; Report Number: LEW-14472
Storing Fluorine In Graphitelike Carbon Fibers
Author(s): Hung, Ching-Cheh
Abstract: Fluorine stored in graphite or graphitelike carbon fibers for later release and/or use in chemical reactions. Storage in carbon fibers eliminates difficulty and risk of using high-pressure tanks and pipes to hold corrosive ...
NASA Center: Glenn Research Center
Publication Year: 1995
Added to NTRS: 2005-09-30
Accession Number: 95B10662; Document ID: 19950071266; Report Number: LEW-15359
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