Have a personal or library account? Click to login

Possibilities of Using Low-Density C–C Composites for Thermal Protection of Small Unmanned Aerial Vehicles

Open Access
|Jun 2023

Figures & Tables

Figure 1.

Viscose fibre general appearance and chemical formula.
Viscose fibre general appearance and chemical formula.

Figure 2.

CFC based on viscose. CFC, carbonised carbon fibres.
CFC based on viscose. CFC, carbonised carbon fibres.

Figure 3.

Appearance of viscose fibre before crushing, ×2.
Appearance of viscose fibre before crushing, ×2.

Figure 4.

The change in the modulus of elasticity of low-density CCCM depending on the carbonisation temperature. CCCM, carbon–carbon composite materials.
The change in the modulus of elasticity of low-density CCCM depending on the carbonisation temperature. CCCM, carbon–carbon composite materials.

Figure 5.

Dependence of shrinkage of low-density CCCM on carbonisation temperature. CCCM, carbon–carbon composite materials.
Dependence of shrinkage of low-density CCCM on carbonisation temperature. CCCM, carbon–carbon composite materials.

Figure 6.

Change in the compressive strength limit of low-density CCCM as a function of the carbonisation temperature. CCCM, carbon–carbon composite materials.
Change in the compressive strength limit of low-density CCCM as a function of the carbonisation temperature. CCCM, carbon–carbon composite materials.

Main physical and mechanical characteristics of low-density CCCM_

NameIsostatic technologyMethod of draining aqueous suspension
Material density (apparent) (g/m3)0.45–0.750.17–0.21
Temperature factor of linear expansion (1/K)(5.5–6.1)·10−6(4.3–5.3)·10−6
Compression strength limit (MPa)0.60–0.800.70–1.10
0.85–1.050.84–1.25
Carbon content (%)99.699.6
Thermal conductivity coefficient (W/(m·K); at 2,000 K)0.55–0.800.45–0.55

Mechanical properties of carbon fibres_

Type of raw materialDensity (g/cm3)Young’s modulus (GPa)Tensile strength (MPa)Strain at breaking (%)
Viscose cord fibres1.60405001.25
PAN fibres1.802304,5002.00
Pitch fibres2.005202,1000.40
Language: English
Page range: 45 - 57
Submitted on: Oct 12, 2022
Accepted on: Apr 11, 2023
Published on: Jun 12, 2023
Published by: Sciendo
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2023 Taras Yanko, Roman Datsenko, Hanna Karpenko, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.