Nanoscale tribological materials

2021 ◽  
pp. 49-55
Author(s):  
G. E. Selyutin ◽  
A. V. Dunaev
Keyword(s):  
Organic Compounds ◽  
Carbon Fibers ◽  
Chemical Technology ◽  
Carbon Shell ◽  
Carbon Clusters ◽  
Stable Carbon ◽  
Nano Carbon

The results of the development and testing of nanodiamond triboactive from Krasnoyarsk Institute of chemistry and chemical technology, Krasnoyarsk Institute of Biophysics together with "RealDzerjinsk", as well as the results of the development of the new triboactive based on nano carbon fibers. It is proved that in contrast to pure nanodiamond powders imported nanomaterials explosion technologies graphite represent pseudoalpina nanoparticles surrounded by a carbon shell. Saturating them various peripheral organic compounds can be sedimentary stable carbon clusters, working at friction in oil is not for mechanism sergiovanni, and the mechanism of chemisorption and polymerization components triborate. A new, more technologically advanced and cheaper tribological material GRAF SB on the basis of on nano carbon fibers, are no less effective nanodiamond, only works on mechanism of adsorption and chemisorption.

Сarbon nanoscale tribological materials

2020 ◽  
pp. 18-24
Author(s):  
G. E. Selyutin ◽  
A. V. Dunaev
Keyword(s):  
Organic Compounds ◽  
Chemical Technology ◽  
Carbon Shell ◽  
Carbon Clusters ◽  
Stable Carbon ◽  
Nano Carbon

The results of the development and testing of nanodiamond triboactive from Krasnoyarsk Institute of chemistry and chemical technology, Krasnoyarsk Institute of Biophysics together with "RealDzerjinsk", as well as the results of the development of the new triboactive based on nano carbon fi bers. It is proved that in contrast to pure nanodiamond powders imported nanomaterials explosion technologies graphite represent pseudoalpina nanoparticles surrounded by a carbon shell. Saturating them various peripheral organic compounds can be sedimentary stable carbon clusters, working at friction in oil is not for mechanism sergiovanni, and the mechanism of chemisorption and polymerization components triborate. A new, more technologically advanced and cheaper tribological material GRAF SB on the basis of on nano carbon fi bers, are no less eff ective nanodiamond, only works on mechamechanism of adsorption and chemisorption.

Technique to Make Nano Carbon Tubes Buried Inside Rubber Composite Visible Using Femtosecond Pulse Laser Ablation

2005 ◽  
Vol 20 (1) ◽  
pp. 10-12 ◽  
Author(s):  
Yasunori Saito ◽  
Fumitoshi Kobayashi ◽  
Toshikazu Takeda ◽  
Akiko Takeuchi ◽  
Akio Nomura ◽  
...  
Keyword(s):  
Composite Material ◽  
Pulse Laser ◽  
Carbon Fibers ◽  
Femtosecond Pulse ◽  
Secondary Electron ◽  
Pulse Laser Ablation ◽  
Rubber Composite ◽  
Nano Carbon ◽  
The Difference ◽  
Structure Of Carbon Nanotubes

A method to observe the dispersion structure of carbon nanotubes buried inside a molding composite is described in this communication. The idea is that by utilizing the difference in ablation temperature between the tubes and the composite material, only the composite material, which has a lower ablation temperature, is ablated and buried tubes appear. This was applied to a rubber composite mixed with vapor-grown carbon fibers. A 150-fs pulse laser was prepared as an ablation source. In the ablation images observed with a field-emission secondary electron microscope, linear tubes, clusters, and connections of the tubes could be easily found in their original state.

The Morphologies of Nano Carbon Growing In Situ by Catalytic Chemical Vapor Deposition

2012 ◽  
Vol 430-432 ◽  
pp. 1269-1272
Author(s):  
Xian Feng Xu ◽  
Yan Yan Hu ◽  
Peng Xiao
Keyword(s):  
Chemical Vapor Deposition ◽  
Electron Microscope ◽  
Carbon Fibers ◽  
Vapor Deposition ◽  
Carbon Nanofiber ◽  
Chemical Vapor ◽  
Catalytic Chemical Vapor Deposition ◽  
Operation Conditions ◽  
Nano Carbon

In order to improve surface characteristics of carbon fibers, using nickel granules as catalysts, nano carbon with different morphologies was deposited in-situ on the surface of carbon fibers by the method of Chemical Vapor Deposition (CVD). The observations by Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM) indicated that keeping the excellent performance of plating nickels catalyst and a suitable deposition rate of Pyrogenation Carbon (PyC) are the key factors for getting Carbon Nanotube and Carbon Nanofiber (CNT/CNF). In this experiment, the optimum operation conditions are: plating time at 5min, deposition temperature at 1173K, deposition time at 2 hours, flow of C3H6, H2 and N2 at 30, 200 and 400ml/min respectively, deposition pressure at 700-1000Pa. Evolution rules of nano carbon are explained in growth mechanism of Catalytic Chemical Vapor Deposition (CCVD).

scholarly journals Nanocellulose/polypyrrole aerogel electrodes with higher conductivity via adding vapor grown nano-carbon fibers as conducting networks for supercapacitor application

RSC Advances ◽  
2018 ◽  
Vol 8 (70) ◽  
pp. 39918-39928 ◽  
Author(s):  
Yanping Chen ◽  
Shaoyi Lyu ◽  
Shenjie Han ◽  
Zhilin Chen ◽  
Wenjun Wang ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
Electrode Materials ◽  
Electrochemical Performances ◽  
Supercapacitor Application ◽  
Conducting Networks ◽  
Nano Carbon

The electrochemical performances of nanocellulose-based electrode materials were improved via building nano-carbon conducting networks.

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