Carbon filament glow lamps

2015 ◽  
Keyword(s):  
Carbon Filament

Electrical resistivity of submicron-diameter carbon-filament compacts

Carbon ◽  
2001 ◽  
Vol 39 (11) ◽  
pp. 1717-1722 ◽  
Author(s):  
Xiaoping Shui ◽  
D.D.L. Chung
Keyword(s):  
Electrical Resistivity ◽  
Carbon Filament

Carbon filament implants promote axonal growth across the transected rat spinal cord

1991 ◽  
Vol 541 (1) ◽  
pp. 139-145 ◽  
Author(s):  
Talat Khan ◽  
Michael Dauzvardis ◽  
Scott Sayers
Keyword(s):  
Spinal Cord ◽  
Axonal Growth ◽  
Rat Spinal Cord ◽  
Carbon Filament

An Apparatus for the Extraction of Samples of Rubber and Other Materials with Solvents

1934 ◽  
Vol 7 (3) ◽  
pp. 599-601
Author(s):  
H. J. Stern ◽  
W. Pufett
Keyword(s):  
Small Samples ◽  
Carbon Filament ◽  
Sheet Iron ◽  
Analytical Work ◽  
Filament Lamps

Abstract The following is a brief description of a simple, cheap and efficient apparatus for the extraction of small samples of rubber and other materials with solvents, as is required in analytical work. It may also be used for any reactions which involve refluxing. The apparatus is shown in diagram in Figs. 1, 2 and 3. The base is made from a piece of a suitable quality of heat-resisting ebonite such as Silvernite. On the base is mounted a series of carbon filament lamps, six being a convenient number for one unit. Each lamp has its own switch. Around the lamp is a cylinder of sheet iron or zinc, perforated as shown. These cylinders serve to support the flasks, which are in effect heated by warm air from the lamp. In the diagram the cylinders are shown with a plain top, but it is sometimes of advantage to have this serrated, so as to avoid any tendency for extracts to become “baked” above the level of the solvent.

The Tensile Behavior of High-Strength Carbon Fibers

2016 ◽  
Vol 22 (4) ◽  
pp. 841-844 ◽  
Author(s):  
Tye Langston
Keyword(s):  
Young’S Modulus ◽  
Carbon Fibers ◽  
Young's Modulus ◽  
Weak Link ◽  
Fiber Strength ◽  
Fiber Surface ◽  
High Strength ◽  
Carbon Filament ◽  
Specific Strength ◽  
Macro Scale

AbstractCarbon fibers exhibit exceptional properties such as high stiffness and specific strength, making them excellent reinforcements for composite materials. However, it is difficult to directly measure their tensile properties and estimates are often obtained by tensioning fiber bundles or composites. While these macro scale tests are informative for composite design, their results differ from that of direct testing of individual fibers. Furthermore, carbon filament strength also depends on other variables, including the test length, actual fiber diameter, and material flaw distribution. Single fiber tensile testing was performed on high-strength carbon fibers to determine the load and strain at failure. Scanning electron microscopy was also conducted to evaluate the fiber surface morphology and precisely measure each fiber’s diameter. Fiber strength was found to depend on the test gage length and in an effort to better understand the overall expected performance of these fibers at various lengths, statistical weak link scaling was performed. In addition, the true Young’s modulus was also determined by taking the system compliance into account. It was found that all properties (tensile strength, strain to failure, and Young’s modulus) matched very well with the manufacturers’ reported values at 20 mm gage lengths, but deviated significantly at other lengths.

Carbon Filament Growth on Fully Formulated Pd/Rh Automotive Catalysts

2000 ◽  
Vol 6 (S2) ◽  
pp. 66-67
Author(s):  
J.W. Hangas ◽  
G.W. Graham ◽  
R.W. McCabe ◽  
W. Chun
Keyword(s):  
Carbon Monoxide ◽  
Catalytic Activity ◽  
Operating Conditions ◽  
The Other ◽  
Carbon Filament ◽  
Automotive Catalysts ◽  
Exhaust Catalysts ◽  
Stabilization Procedure ◽  
Carbon Filaments ◽  
Aged Catalyst

Automotive exhaust catalysts are typically operated under stoichiometric conditions to minimize nitrogen oxide, hydrocarbon, and carbon monoxide pollutants. These catalysts do not form carbon filaments under normal operating conditions. In development of catalysts, however, a stabilization procedure is sometimes utilized on used catalysts (dynamometer or vehicle) to purge the catalyst of sulfur prior to measuring the catalytic activity in sweep and light-off testing. The stabilization procedure consists of running the catalyst under rich (excess fuel) conditions for 0.5hr. This study documents the existence of carbon filaments due to the stabilization procedure and discusses the effect of filaments on subsequent testing.Two separate catalysts were used in this study. The first was a 50,000 mile vehicle aged catalyst that had also been through the stabilization procedure and then sweep and light-off tested. The other was only dynamometer aged for 120hr at 850°C (1560°F).

scholarly journals Use of a Carbon Filament Lamp to Charge Electroscopes

Nature ◽  
1913 ◽  
Vol 91 (2275) ◽  
pp. 348-349
Author(s):  
R. WHIDDINGTON
Keyword(s):  
Carbon Filament ◽  
Filament Lamp

Irradiation Effect of Nitrogen Ion Beam on Carbon Nitride Thin Films

2003 ◽  
Vol 792 ◽  
Author(s):  
Shinichiro Aizawa ◽  
Yuka Nasu ◽  
Masami Aono ◽  
Nobuaki Kitazawa ◽  
Yoshihisa Watanabe
Keyword(s):  
Thin Films ◽  
Carbon Nitride ◽  
Ion Beam ◽  
Chemical Vapor ◽  
Columnar Structure ◽  
Irradiation Effect ◽  
Carbon Filament ◽  
Cross Sectional ◽  
Nitrogen Ions ◽  
Nitrogen Ion

ABSTRACTIrradiation effect of low-energy nitrogen ion beam on amorphous carbon nitride (a-CNx) thin films has been investigated. The a-CNx films were prepared on silicon single crystal substrates by hot carbon-filament chemical vapor deposition (HFCVD). After deposition, the CNx films were irradiated by a nitrogen ion beam with energy from 0.1 to 2.0 keV. Irradiation effect on the film microstructure and composition was studied by SEM and XPS, focusing on the effect of nitrogen ion beam energy. Surface and cross sectional observations by SEM reveal that the as-deposited films show a densely distributed columnar structure and the films change to be a sparsely distributed cone-like structure after irradiation. It is also found that 2.0 keV ions skeltonize the films more clearly than 0.1 kev ions. Depth profiles of nitrogen in the films observed by XPS show that nitrogen absorption into films is more prominent after irradiation by 0.1 keV nitrogen ions than 2.0 keV ions.

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