JEC COMPOSITES MAGAZINE - Issue #148 - November/December 2022 - 46

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TECHNOLOGY basalt
Application of basalt rock-based
materials in the automotive industry
This article presents the characteristics of basalt-based materials,
their possibilities and their prospects for widespread application
in the automotive industry, including for the production
of electric-drive cars.
s.P. osNos,
Doctor of Technical Sciences
illia roZHKoV,
Assistant
Basalt Fiber Materials Technology Development Co.
Tab.2:Thermal conductivity of super-thin basalt fi bre materials
A
t the present stage of the automotive industry's development,
there is a strong demand for durable, lightweight and non-corroding
structural materials and composites, protective coatings,
and heat and sound insulation materials. Currently, low-cost glass fi bres
are the most commonly used in this sector. Carbon fi bres are used in a
limited number of applications, only where it is economically feasible.
Due to their specifi c technical characteristics and cost performance,
materials made from basalt fi bres (BF) have good prospects and can be
widely used in the automotive industry. Considerable experience has
already been gained in the use of materials and parts made from basalt
continuous fi bre (BCF) in the automotive industry and other sectors
such as aviation, shipbuilding and railway carriage engineering. BCF and
BCF-based materials have a number of high technical and operational
characteristics.
First, they have a high durability due to the relatively high specifi c
breaking strength of the fi bres, signifi cantly exceeding the values for
metal (2-2.5 times) and E-glass fi bre (1.4-1.5 times).
Table 1 presents specifi c tensile strength data for basalt continuous
fi bres [1].
Tab.1:Specifi c tensile strength of basalt continuous fi bres
Continuous fi lament
diameter, µm
Breaking strength-toweight
ratio of elementary
fi bres, kg/mm²
46
5.0
215
6.0
210
jec composites magazine / N°
8.0
208
9.0
214
11.0
212
Th ese materials also off er a high resistance to external environmental
factors and aggressive environments. Basalt fi bres are suitable for structures
operated in contact with moisture, salt solutions, chemical media,
and are not subject to corrosion.
148 November - December 2022
Specifi c density,
kg/m3
Temperature
range, 50°
C
20
Thermal conductivity
30
60
80
kcal/ (h* m* C)
0.0405 0.0375 0.0345 0.0340 0.0360 0.0380
0.041
Tab.3: Soundproofi ng characteristics of super-thin basalt fi bre-based
materials
Material density: ρ =15 kg/m3
; material thickness: 30 mm; gap between
the material and insulated wall: 0.0 mm
Frequency range, Hz
Normal sound absorption
coeffi cient
Material density: ρ =15 kg/m3
100-300
0.05-0.15
material and insulated wall: 100 mm
Frequency range, Hz
Normal sound absorption
coeffi cient
400-900
0.22-0.75
1200-7000
0.85-0.93
; material thickness: 30 mm; gap between the
100-200
0.15
300-900
0.86-0.99
1200-7000
0.74-0.99
100
120
140
Basalt
Application of basalt rock-based
materials in the automotive industry
Optimisation
SMART, an innovative rotomoulding technology solution
Inside the lab
Advanced Technologies Lab for Aerospace Systems (ATLAS):
a multi-disciplinary manufacturing ecosystem
TECHNOLOGY
JEC COMPOSITES MAGAZINE - Issue #148 - November/December 2022

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