4 edition of Amorphous Hydrogenated Carbon Films, 1987 (Symposia proceedings / European Materials Research Society) found in the catalog.
Amorphous Hydrogenated Carbon Films, 1987 (Symposia proceedings / European Materials Research Society)
by Materials Research Society
Written in English
|Contributions||P. Oelhafen (Editor)|
|The Physical Object|
|Number of Pages||541|
, Rapid thermal annealing of amorphous hydrogenated carbon (a-C: H) films [microform] Samuel A. Alterovitz, John J. Pouch, and Joseph D. Warner National Aeronautics and Space Administration ; For sale by the National Technical Information Service [Washington, D.C.]: . Hydrogenated amorphous carbon (a-C:H) films were prepared at room temperature by low frequency (Hz) plasma chemical vapor deposition using CH. and Hz. The a-C:H films were transparent, highly resistive, and very uniform. Infrared absorption measurements, as well as:Raman spectroscopy, indicated that the C bonding in the a-C:H films was.
COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle . Diamondlike-carbon (DLC) coatings have received a lot of research attention by physicists and engineers, especially in the past 25 years. Attempts to use such materials in tribolo.
The dependence of the nanotribological properties of ultrathin amorphous carbon (a-C) films, deposited on Si() substrates by radio frequency sputtering, on their nanomechanical properties was investigated using surface force microscopy. the aim of this present work is to make amorphous hydrogenated carbon–sulfur (a-C:S:H) thin films with a range of C:S ratios, and to study their electronic and mechanical properties. 2. Experimental Films were deposited using a MHz capacitive-ly-coupled RF plasma reactor. Process gases of CH and 4.
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Eiji Iwamura, in Tribology and Interface Engineering Series, Synthesis of multilayered films. The amorphous carbon films were deposited onto high-speed steel substrates (Hv=, f50mm × 8 mm t).Tungsten/carbon gradient content adhesive layers were formed prior to the a-C deposition .Using an anisotropic graphite target of 6 inches in diameter, a-C films.
Get this from a library. Amorphous hydrogenated carbon films: June 2nd-5thStrasbourg, France. [P Koidl; P Oelhafen; Council of Europe.; Commission of. D.F. Franceschini, in Thin Films and Nanostructures, A-C:H FILM STRUCTURE.
The hard amorphous hydrogenated carbon films (a-C:H) belong to the class of materials called diamond-like carbon (DLC). These materials are designated as DLC due to their superlative properties, similar to that of crystalline diamond, such as high hardness, low friction. Hydrogenated amorphous carbon (a-C:H) films have been prepared in a r.f.
deposition reactor on negatively self-biased substrates from pure CH4 gas. Amorphous carbon is free, reactive carbon that does not have any crystalline ous carbon materials may be stabilized by terminating dangling-π bonds with with other amorphous solids, some short-range order can be ous carbon is often abbreviated to aC for general amorphous carbon, aC:H or HAC for hydrogenated amorphous carbon.
Amorphous hydrogenated carbon films. Synthesis, structure and properties. A P Ryaguzov 1,3, R R Nemkayeva 1,2, B E Alpysbaeva 2 and R K Aliaskarov 2. Published under licence by IOP Publishing Ltd Journal of Physics: Conference Series, VolumeInternational Workshop on Physical and Chemical Processes in Atomic Systems 15–17 November Hydrogenated amorphous carbon (a-C:H) thin film is one of the most studied materials due to its unique features.
The a-C:H thin film is a remarkable material because of its novel optical, mechanical Amorphous Hydrogenated Carbon Films electrical properties and its similarities to diamond. Amorphous carbon films have been prepared in a r.f. glow discharge from various hydrocarbon gases.
Electrical conductivity and optical absorption measurements show a strong dependence on the preparation gas and on the substrate temperature T ularly for specimens prepared from ethylene, varying T d from to °C increased the conductivity by ten orders of. This book presents the status quo of the structure, preparation, properties and applications of tetrahedrally bonded amorphous carbon (ta-C) films and compares them with related film systems.
Tetrahedrally bonded amorphous carbon films (ta-C) combine some of the outstanding properties of diamond with the versatility of amorphous materials. INTRODUCTION. Hydrogenated amorphous carbon (a-C:H) is a fantastic solid lubricant, which can nearly cancel out the interfacial friction forces between rubbing surfaces and decrease the friction coefficient μ to an extremely low level of a few thousandths (i.e., μ ~ ) in macroscale (1–4).However, such a peculiar superlubricity phenomenon is generally encountered in dry.
: Amorphous Hydrogenated Carbon Films, (Symposia proceedings / European Materials Research Society) (): P. Koidl, P. Oelhafen: Books. Hydrogenated amorphous carbon (a‐C:H) films, deposited onto negatively biased substrates in a ‐MHz hydrocarbon glow discharge system, have been investigated by mass spectroscopic thermal effusion measurements.
Depending on the bias voltage U B as the most important deposition parameter, hydrocarbons and/or H 2 molecules are desorbed at threshold. Recent results on the composition, structural characterization and mechanical properties of amorphous hydrogenated carbon-nitrogen films (a-C(N):H) deposited by plasma enhanced chemical vapor deposition (PECVD) have been discussed.
Silinskas, A. Grigonis, V. Kulikauskas and I. Manika, Hydrogen influence on the structure and properties of amorphous hydrogenated carbon films deposited by direct ion beam, Thin Solid Films, — CrossRef CAS. Hydrogenated amorphous carbon (a-C:H) films, deposited onto negatively biased substrates in a MHz hydrocarbon glow discharge system, have been investigated by mass spectroscopic thermal effusion measurements.
Depending on the bias voltage U B as the most important deposition parameter, hydrocarbons and/or H 2 molecules are desorbed at threshold. Results are presented of a study of physical and optical properties of amorphous hydrogenated carbon films (a-CH x) prepared by d.c. magnetron glow-discharge decomposition of acetylene in argon, both as prepared and after heat treatment in dependences of density, deposition rate and hardness on the partial pressure of acetylene used in film preparation are.
In book: Tetrahedrally Bonded Amorphous Carbon Films I, pp Hydrogen-free amorphous carbon films with properties ranging between those of graphite and diamond were deposited using a.
Amorphous hydrogenated carbon thin films were deposited on Si and glassceramics substrates by reactive ion-plasma magnetron sputtering. Thin films were without (a-C:H) and with Ni nanoparticles (a-C:H:Ni). Measurement of absorption coefficient in nm spectral range using spectrophotometer and following approximation applying of Tauc method shows that obtained a-C:H thin films.
The origin and interpretation of the Raman features of amorphous (hydrogenated) carbon films deposited at room temperature in the region of – cm −1 is discussed in this paper. Possible interpretations of the linewidths, positions of the ‘‘G’’ graphite peak and ‘‘D’’ disordered peak, and their intensity ratios are examined using results obtained.
A powertrain component such as a valve lifter (10) for use in an internal combustion engine (12), the valve lifter (10) being positioned between a cam (14) and a valve stem (16). An amorphous hydrogenated carbon film (28) is formed on the component, the film (28) imparting the characteristics of low friction and wear resistance.
Also disclosed is an interlayer which. This book describes the properties and device applications of hydrogenated amorphous silicon. It covers the growth, the atomic and electronic structure, the properties of dopants and defects, the optical and electronic properties which result from the disordered structure and finally the applications of this technologically very important material.In order to further adapt this biopolymeric material to certain applications, they are often improved with amorphous hydrogenated carbon (a-C:H) layers [5,6,7].The carbon in these layers is π- and σ- hybridized for sp 2 as well as sp sp 2 clusters are limited to short chains embedded in a sp 3 matrix containing carbon and hydrogen [5,8].The properties of the resulting layers .H.
Ito et al. New Diamond and Frontier Carbon Technology Vol. 16, No. 5 MYU Tokyo NDFCT *Corresponding author: e-mail: [email protected] Hydrogenated Amorphous Carbon Nitride Films with Controlled Hydrogen Densities—.