THAT PROTECT AGAINST GAMMA RADIATION
A. V. Ermolenko,
A. A. Shevelev,
M. A. Vikulova,
D. S. Kovaleva,
K. B. Kostin,
E. A. Yakovlev,
and I. N. Burmistrov
Translated from Novye Ogneupory, No. 12, pp. 53 – 56, December, 2016.
Original article submitted August 14, 2016.
A functional ceramic based on the lead titanates is synthesized and its radiation-protective characteristics are
studied. The phase compositions of lead titanates synthesized with the use of different proportions for the ini
tial components are compared and the component ratio is optimized to ensure that the resulting titanates of
heavy metals have an acceptable phase composition. The absorption of gamma radiation by synthesized lead
titanate is studied and this product is compared to traditional protective materials. It is shown that in terms of
its protective characteristics lead titanate is surpassed only by pure lead and barite concrete.
Keywords: lead titanate, functional ceramic, gamma radiation, radiation-protective materials, synthesis in a
melt of salts.
Composites that offer protection against gamma radia-
tion have a wide range of uses in aviation and aerospace, in
the construction of nuclear power plants (the installation of
engineering barriers with radiation-protective properties as
materials for shielding production equipment during mainte
nance), for improving the protective properties of facilities
against ionizing radiation, in fallout shelters, at concentration
plants, in medical institutions (in radiation cabinets and to
protect medical personnel and patients during radiation ther
apy), and in the construction of radioactive-material burial
sites and special storage facilities (testing laboratories).
These composites help keep radionuclides in place at such
sites and facilities and limit their movement after their local
Traditional materials such as metallic lead cannot always
be used. The use of ceramic or polymer composites is prefer
able in many areas.
To make ceramics capable of attenuating gamma radia
tion, they are made with the addition of atoms of heavy met
als having an atomic weight greater than 50 amu. Among the
more promising materials in this group are titanates of heavy
metals, which in addition to being markedly less dense have
another metal (titanium) in their composition. The use of
such materials makes it possible to significantly improve the
mechanical properties of ceramic or polymer composites
[8 – 13].
Study of the patent literature on methods used to synthe
size lead titanates showed that these methods are compli
cated and do not always make it possible to obtain pure lead
titanate [14 – 16]. The best method of synthesizing lead ti
tanates is to have a melt of lead nitrate salts react with tita
nium oxyhydroxide at 700°C . One promising method of
obtaining lead titanates that is based on exchanging potas
sium ions for lead in potassium titanates was described in
 as a way of removing heavy metals from solutions of
salts. However, titanates synthesized by these methods have
not been studied as radiation-protective materials. In connec
tion with this, our goal in this investigation was to optimize
the parameters for synthesizing lead titanates and study their
ability to absorb gamma radiation.
Methods of synthesis and objects of study
The objects chosen for study were lead nitrate (GOST
4236) and titanium dioxide (GOST 9808).
Refractories and Industrial Ceramics Vol. 57, No. 6, March, 2017
1083-4877/17/05706-0661 © 2017 Springer Science+Business Media New York
Saratov State Technical University im. Yu. A. Gagarina, Saratov,
MISiS, Moscow, Russia.