Every year, in accordance with the Decree of the President of the Republic of Belarus, on the last Sunday of January, the professional holiday of scientists of our country- the Day of Belarusian Science is celebrated. In this regard, today, January 28, we invite you to familiarize yourself with 10 significant scientific achievements of the Belarusian National Technical University for 2023.
Developers: V. M. Konstantinov, V. G. Dashkevich, I. V. Pletenev.
As part of the grant of the President of the Republic of Belarus on science for 2023, employees of the department “Materials Science in Mechanical Engineering” have developed a technology for increasing the durability of copper under-spun refrigerators for glass production by chemical-thermal treatment. In particular, a unique technology and composition of a special powder mixture with the addition of boron and chromium have been developed for complex low-temperature thermal diffusion saturation of copper with aluminum in the temperature range from 520 to 560 °C. According to laboratory tests, the use of the developed technology ensures an increase in the durability of the lamella cooler for glass production by 8.2 times due to an increase in the concentration of aluminum in the thermal diffusion layer to 26.4% by weight, a decrease in the thickness of the oxide film at the initial stages of chemical-thermal treatment, as well as ensuring the required performance properties of the product.
Based on the results of scientific research carried out at the LLC Plant NGPO enterprise, a production site for OJSC “Steklovolokno” was created to strengthen the under-spun copper cooler for glass production of a lamella construction.
Developers: V. T. Minchenya, P. E. Lushchik, S. V. Orlovsky, D. A. Bodyak.
The medical device is intended for total knee replacement. The experimental and production sections of the Technology Park received Registration certificates for medical products and produced a batch of endoprostheses with implantation instruments in the amount of 600 sets. After reaching design capacity, the annual production volume will be at least 3,000 sets, which will meet the annual need of healthcare institutions of the Republic of Belarus for this type of medical products. In this case, the revenue will be at least 5.1 million belarusian rubles.
Developers: V. M. Ulasevich, A. A. Sitnik.
The medical product is intended for performing external osteosynthesis in the treatment of various fractures and deformities of the bones of the upper and lower extremities. Registration certificates for medical products in the Republic of Belarus and the Russian Federation for 35 items were received. After reaching planned capacity, the annual production volume will be at least 5,000 sets, which will meet the annual need of healthcare institutions of the Republic of Belarus for this type of medical products. In this case, the revenue will be at least 1.2 million belarusian rubles.
Developers: V. T. Minchenya, I. V. Olgomets.
The medical product is intended for use as a lining material under surgical threads while performing surgical operations. A registration certificate for a medical device was received, a batch of products was manufactured and delivered to the Republican Scientific and Practical Center "Cardiology". After reaching the design capacity, an annual volume of supplies of the product to healthcare institutions will be at least 200.0 thousand belarusian rubles.
Developers: A. Yu. Korolev, V. S. Niss.
A pilot industrial technology for electrolyte-plasma polishing of nitinol for medical products used in cardiovascular surgery has been developed and introduced into the Scientific and Technological Park of BNTU "Polytechnic". The technology is intended for polishing elements of medical products for cardiac surgery. The implementation of the technology makes it possible to realize the shape memory effect of the material, and also promotes the biocompatibility of medical devices after implantation. After reaching its design capacity, the technology will be used to manufacture 12 types of medical products, the production volume of which will be 8.2 thousand products.
As part of international cooperation in the area of interaction with China, on October 25, 2023, the China-Belarus innovative educational, research and production center for strengthening, restoration and corrosion protection of machine parts was opened at the Shenyang University of Technology. The following technologies are developed, improved and scaled into the production cycles of industrial enterprises as basic technologies at the center:
The successful operation of the Chinese-Belarusian innovative training, research and production center for strengthening, restoration and corrosion protection of machine parts will make it possible in the medium term to make mutually beneficial contracts for the supply of pilot batches of parts, technologies and equipment ordered by Chinese industrial enterprises.
As part of the Federal project of the Russian Federation to create an Advanced Engineering School of Hybrid Technologies in Machine Tool Building of the Union State, BNTU, together with Pskov State University, has developed a preliminary design of a five-axis hybrid machining center. During the work, a digital twin of a five-axis hybrid machining center was created, on which virtual tests of technological operating modes were carried out. Based on the results of virtual tests, changes were introduced to the design of the hybrid machining center and design documentation with the letter “O1” was developed.
In 2023, the staff of the Scientific Research Center for Optical Materials and Technologies, within the framework of contractual relations with JSC “Peleng”, developed mathematical models and physical approaches for creating innovative experimental samples of modern pulsed laser emitters with longitudinal diode pumping for serial and promising optoelectronic location, range finding and object detection systems. These systems operate in a safe for the eyes spectral area of about 1.5 microns.
The competencies of the research center allow us to carry out a full cycle of R&D (T)R for the creation of high-tech laser systems, starting with the development of the element base of laser technology and equipment and ending with the design and manufacture of operating prototypes. The cycle includes the development of technologies for growing laser crystals with different levels of doping with ions of transition metals and rare earth elements; comprehensive studies of the fundamental spectroscopic and thermal physical properties of grown crystals for their use as active media and passive gates of new laser systems; production of prototypes of passive shutters with the required optical properties and technical characteristics; design of axial and transverse diode pumping circuits; creation of experimental samples of modern laser emitters based on new crystalline materials.
At the XXVIII International Exhibition and Congress “High Technologies. Innovation. Investments" HI-TECH 2023 in St. Petersburg BNTU was awarded a gold medal for the import-substituting development of an innovative building material (nanofiber concrete with a concrete matrix modified by nanomaterials of high strength, crack resistance and durability) recognized by the international jury of the competition as the best innovative project in the category "New materials and technologies, chemical products."
In the course of scientific research, the effectiveness of the joint complementary “work” in fiber-reinforced concrete under the load of carbon nanotubes (CNTs) and steel fiber was theoretically substantiated and experimentally confirmed due to the practical equality of their elastic moduli. Their rational ratio in fiber-reinforced concrete has also been established with a CNT content of ~0.00075% of the mass of cement and steel fiber of ~1.0% of the volume of concrete, which in total does not change the compressive strength, but provides an increase in tensile strength in bending up to 105% , splitting elongation up to 77%, deflection at maximum load by 10 times and a multiple increase in parameters characterizing the increasing crack resistance of fiber-reinforced concrete and its serviceability and durability. Economic efficiency is ensured by a reduction in cost by 34 BYN. rub. per 1 m3 of concrete based on one unit of quality indicator.
The innovative material was developed as part of the task “Development of import-substituting technology for the construction of high-quality floors and foundation slabs made of fiber-reinforced concrete at the basis of an innovative quality control system” of the State Scientific Research Program “Physical materials science, new materials and technologies of the subprogram “Building materials” for 2021–2025 and can be successfully applied for the construction of large industrial floors and ceilings, as well as for constructions with increased requirements for crack resistance and durability.
Developers: P. E. Lushchik, D. A. Bodyak.
The medical product is intended for total hip replacement. A medical product has been registered so as to be manufactured at the production site of "Polytechnic" that is the Scientific and Technological Park of BNTU. After reaching design capacity, the annual production volume will be at least 3 thousand sets.
On the Day of Belarusian Science, we would like to wish success to domestic scientists in research, new discoveries and achieving their goals!
