scholarly journals ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ СВОЙСТВ УГЛЕРОДНЫХ КОМПОЗИЦИОННЫХ МАТЕРИАЛОВ НА ТРУБЧАТЫХ МОДЕЛЯХ

2018 ◽  
Vol 26 (4) ◽  
pp. 59-63
Author(s):  
Т. А. Манько ◽  
И. А. Гусарова ◽  
О. П. Роменская ◽  
А. А. Самусенко ◽  
И. И. Деревянко
Keyword(s):  
Composite Materials ◽  
Carbon Fiber ◽  
Acrylic Acid ◽  
Plasma Treatment ◽  
Carbon Fibers ◽  
Carbon Composite ◽  
Atmospheric Plasma ◽  
Space Technology ◽  
Carbon Composite Materials ◽  
Acid Environment

At present, carbon composite materials are widely used in space technology. The tendency to expand the consumption of carbon fiber in the manufacture of parts and structures requires the study of new ways of obtaining it. A method of modifying carbon fibers by atmospheric plasma treatment in two different media was used: acrylic acid and allylamine, and fillers were studied on tubular models. As a result of the tests, it was found that atmospheric plasma treatment in acrylic acid environment, contributes to the improvement of the characteristics of CFRP by ~ 25 % more efficiently than processing in allylamine for the types of fillers studied.

scholarly journals Calculation of strength, rigidity, and stability of the aircraft fuselage frame made of composite materials

2021 ◽  
Vol 13 (S) ◽  
pp. 77-86
Author(s):  
Sergei I. IVANNIKOV ◽  
Yana A. VAHTEROVA ◽  
Yuri A. UTKIN ◽  
Ying SUN
Keyword(s):  
Composite Materials ◽  
Carbon Fibers ◽  
Coefficient Of Thermal Expansion ◽  
High Strength ◽  
High Heat ◽  
Carbon Composite ◽  
Aircraft Fuselage ◽  
Space Rocket ◽  
Carbon Composite Materials ◽  
Brake Rotors

Carbon-carbon composite materials (CCCM) are characterized by high heat resistance and thermostability for which they, in most of their physical and mechanical characteristics, can be attributed to the most promising materials. Approximately 81% of all carbon-carbon composite materials are used for the manufacture of brake rotors for aircraft, 18% – in space rocket technology, and only 1% – for all other areas of application. This study discusses calculations of the strength, rigidity, and stability of a frame made of carbon-carbon composite materials. It is known that the strength of CCCM based on high-strength carbon fibers is higher than the strength of a composite material based on high-modulus carbon fibers obtained at various processing temperatures. The stress-strain behaviour (SSB) of the material is carried out. Among the special properties of CCCM are low porosity, low coefficient of thermal expansion, maintaining a stable structure and properties, as well as product dimensions.

INFLUENCE OF THE PYROLYTIC COMPACTION PROCESS ON THE PHYSICAL AND MECHANICAL PROPERTIES OF HIGH-DENSITY CARBON-CARBON COMPOSITE MATERIALS BASED ON PITCH MATRICES

2021 ◽  
pp. 3-9
Author(s):  
V. V. Kulakov ◽  
M. I. Pankov ◽  
V. A. Sivurova ◽  
M. S. Luchkin ◽  
A. K. Golubkov ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
Initial Density ◽  
Physical And Mechanical Properties ◽  
Pyrolytic Carbon ◽  
Carbon Composite ◽  
Test Results ◽  
High Modulus ◽  
Compaction Process ◽  
Carbon Composite Materials ◽  
Density Values

The efficiency of the pyrolytic carbon compaction process by decomposing methane in samples of a carbon-carbon composite randomly reinforced with discrete high-modulus (graphitized) carbon fibers with different densities is investigated. The analysis of the test results of samples for determining the compressive strength, determining the densities of samples after compaction with pyrocarbon and after compaction by impregnation and carbonization under pressure is carried out. Scanning electron microscopy (SEM) was used to study the structure of material samples with different initial density values.

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