FEATURES OF HIGH-STRENGTH COMPOSITE
MATERIAL STRUCTURE CREATION
G. D. Semchenko,
V. V. Makarenko,
S. M. Logvinkov,
I. Yu. Shuteeva,
and A. S. Katyukha
Translated from Novye Ogneupory, No. 4, pp. 29 – 33, April 2015.
Original article submitted January 3, 2015.
The basis of technology proposed is use of a sol-gel method for preventing polycrystalline corundum fiber
from crystallization during heating to high temperature and for low-temperature synthesis of prescribed
phases in a corundum matrix with the aim of improving the operating properties of composite materials based
on corundum. As a result of firing a charge based on corundum powder modified with tetraethoxysilane and
polycrystalline corundum fiber modified with ethylsilicate-32 at 1360°C materials are created with very good
strength properties. The materials exhibit electrical insulation properties and are stable in ionized gas streams
at the level of known analogs as a result of creating self-reinforced mullite and b-SiC corundum matrix, rein-
forced with polycrystalline fiber and rapidly sintered due to presence of silicon oxynitride.
Keywords: structure, CM, mullite, modified fiber, tetraethoxysilane (TEOS), silicon oxynitride, b-SiC.
Progress in the field of high-temperature materials is
mainly connected with development of good technology in
ceramic materials science. Currently special attention is be-
ing devoted to the question of developing and introducing
energy saving technology. A significant amount of domestic
and overseas publications is devoted to this problem, and
also a method for synthesizing heat-resistant materials with
In order to accelerate scientific and technical progress in
various branches of industry, increasing the efficiency of var
ious products, it is necessary to create and introduce new ad
vanced processes and equipment, whose operation is con
nected with high temperature and other extreme conditions.
The intensity of scientific research and development in ce
ramic materials science gives rise to solution of urgent prob
lems such a requirement for creating new materials for ad
vanced branches of industry, new technology, energy saving,
and a reduction in the requirement for scarce materials and
environmental protection. The twenty first century is a cen
tury of ceramics, since the properties of advanced ceramics
are at the boundaries of metals and alloys based on them, and
it should resolve very many problems of progress. Improve-
ment of existing high-temperature materials and develop-
ment of new materials exhibiting a set of properties satisfy-
ing specifications of extreme operating conditions is a task
requiring a search for new ways of material synthesis. There
is increasing interest in use of a sol-gel method in ceramic
materials science for low-temperature synthesis of prescribed
phases with the aim of improving material operating proper
ties, and also in order to reduce the sintering temperature of
materials based on refractory oxides, including those based
on corundum. Creation of new composite materials (CM)
and implementation of the possibilities of their extensive use
are typical trends of contemporary development in science
Development of high-tech ceramic materials facilitates
development of new technology, which as a result of carry
ing out research at the molecular level makes it possible in
stead of improving existing materials to create new materials
with special properties and for special purposes.
Special possibilities of building the structure of ceramic
matrices develop as a result of creating intergranular bound
aries of synthesized phases of prescribed composition and
morphology with use of silicon alkoxide and a sol-gel com
posite based upon it.
It follows from published data that there has been inade
quate study of methods of modifying refractory fillers, par
Refractories and Industrial Ceramics Vol. 56, No. 2, July, 2015
1083-4877/15/05602-0180 © 2015 Springer Science+Business Media New York
NTU Khar’kov Polytechnic Institute, Khar’kov, Ukraine.
Khar’kov National Economic University, Khar’kov, Ukraine.
Company AKVATIKA, Khar’kov, Ukraine.