Deposition of carbon-based coatings on the surface of carbon fibers

Digilov, M.; Vilcev, K.; Zhikharev, A. I.; Kovalev, A. S.; Maluchkov, O.; Sternin, S.; Ilizarov, L.; Костиков, В. И.

doi:10.1016/0008-6223(93)90041-8

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…However, in the sample under examination, the low DOS is found not only in the -states region of 5-8 eV, but also in the states region of 0-5 eV due to a small quantity of carbyne in the PVD coating. 6,7 Thus, the study of the outer shells of atoms in the surface coating has confirmed a complex phase structure. The coating contains TiC and carbon in two states: diamond-like and carbyne.…”

Section: Figure 1 P-t-c Diagrams With Phase Composition Of Pvd Coatimentioning

confidence: 84%

“…Thus the carbyne cluster we observed is probably polycumulene which is consistent with the chemical bonding ofˇ-carbyne reported in the literature. 7,8 The peak at 164.0 meV is tied with diamond and the other more broad one at 189 meV is the amorphous carbon. The analogous Raman spectrum of the a-C magnetron sputtered films was presented in Ref.…”

Section: Figure 1 P-t-c Diagrams With Phase Composition Of Pvd Coatimentioning

confidence: 98%

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Experimental verification of PTC diagrams for TiC and ZrC PVD coatings and determination of free carbon state by AES, XPS and HREELS methods

Ковалев

Wainstein

Karpman

et al. 2004

Surface & Interface Analysis

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Several PVD coatings based on Ti and Zr carbides and on HSS steel were investigated. The partial pressure of the active gas (N 2 , C 2 H 2 ) and substrate temperature were varied over a wide range. The P-T-C diagrams for prediction of coating compositions, dependent on substrate temperature and gas pressure, were calculated using the thermodynamic technique for phase equilibria based on the principle of maximum entropy in an isolated thermodynamic system. The chemical composition, and electronic and atomic structure of coatings were investigated using the AES, XPS and HREELS methods.

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Section: Figure 1 P-t-c Diagrams With Phase Composition Of Pvd Coatimentioning

confidence: 84%

Section: Figure 1 P-t-c Diagrams With Phase Composition Of Pvd Coatimentioning

confidence: 98%

Experimental verification of PTC diagrams for TiC and ZrC PVD coatings and determination of free carbon state by AES, XPS and HREELS methods

Ковалев

Wainstein

Karpman

et al. 2004

Surface & Interface Analysis

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show abstract

“…These regions could provide greater tensile strength and improve the overall machining properties of carbon fibers. 33 Surface initiation and polymerization of acrylonitrile was accomplished using the same free radical activation of the backbone of 1 that was described for the case of ethyl acrylate.…”

Section: Surface-initiated Graft Polymerization Studiesmentioning

confidence: 99%

A carbon network backbone polymer functionalized with polymer brushes

Greco

Bianconi

2010

Polym J

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The surface-initiated graft polymerization of polymer brushes attached to an sp 3 random carbon network backbone structure is demonstrated. Poly(ethyl acrylate) (PEA), poly(4-fluorostyrene) (PFS) and poly(acrylonitrile) (PAN) brushes were grafted from the network backbone polymer poly(hydridocarbyne), 1, illustrating the breadth of reactivity of the network backbone. Attachment of polymeric/oligomeric chains to the network backbone was observed through two different methods with different polymer systems. First, selective solvent extraction separated a homogeneous mixture of PEA and 1, dissolving PEA in diethyl ether, but leaving 1 behind as a brown precipitate. In contrast, 1 functionalized with PEA brushes completely dissolved, showing that it was not a homogenous mixture of the substrate and free polymeric chains, but a system of covalently bound polymer chains originating from 1. Formation of short chains of PFS at the surface of 1 allowed the use of 19 F nuclear magnetic resonance to observe the change in resonance shift and shape for the polymer side chains. Solvent extraction was used to demonstrate that tetrahydrofuran (THF) was able to separate a homogeneous mixture of PAN and 1, dissolving 1 in THF, but leaving PAN behind as a white precipitate.

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Decomposition of Hydrocarbons

Sokołowska

Olszyna

1999

Physics and Chemistry of Materials With Low-Dimensional Structures

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Deposition of carbon-based coatings on the surface of carbon fibers

Cited by 5 publications

References 9 publications

Experimental verification of PTC diagrams for TiC and ZrC PVD coatings and determination of free carbon state by AES, XPS and HREELS methods

Experimental verification of PTC diagrams for TiC and ZrC PVD coatings and determination of free carbon state by AES, XPS and HREELS methods

A carbon network backbone polymer functionalized with polymer brushes

Decomposition of Hydrocarbons

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