logo_iict langflag_bg


Department Embedded Intelligent Technologies

New developments

Project Title:
Design and modelling of metal matrix composites.

Starting date: 01.11.2018
Duration: 18 months
Project type: H2020-MSCA-IF-2017
Grant Agreement No: 797372
Fellow: Dr. Jovana Ruzic
Supervisor: Prof. Dr. Dimitar Karastoyanov
Beneficiary Organization: IICT-BAS


Abstract: Excellent mechanical properties make metal matrix composites (MMCs) an attractive and desirable material in many industries. However, manufacturing costs of MMCs are currently very high mainly due to lack of material design database and limited knowledge related to their behavior in various working conditions. This proposed research aims to improve understanding of the relation between MMCs production parameters and their properties. The proposed research plan has two main assignments: firstly, to experimentally obtain optimal processing parameters for producing highly conductive, strengthened copper matrix composites with uniform dispersion of submicron and nano-sized reinforcements; secondly, to create a computational model for mechanical alloying process and for predicting the behaviour of MMCs. Powder metallurgy will be used for MMCs production. It is expected that with increasing mechanical alloying time the distribution of reinforcements (in-situ formed during densification process) in metal matrix become more uniform which is a requirement for excellent mechanical properties. Investigating the influence of size and volume fraction of in-situ formed reinforcing nanoparticles on its microstructural, mechanical and physical properties will be the overall objective of the experimental work. Proposed techniques, data collection, and analysis will identify the relationship between process parameters and material behaviour, which will contribute to the establishment of process parameters for fabrication of MMCs. Obtained results will present a good database which can accelerate further research, development and possible implementation of MMCs. Moreover, creating computational models for control of microstructure and process design of MMCs will contribute to a better understanding and predicting the behaviour of a wide variety of MMCs. It will provide a cost effective solution in the manufacturing of MMCs which will expand possibilities in the design of new products.
For more information please visit the web page of the DeMoMet project. The DeMoMet project has received the funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 797372.
Keywords: metal matrix composites, integrated computational materials engineering, powder metallurgy, microstructural characterization, mechanical alloying, mechanical properties

Project Title:
3D Digitalization of Objects from National Cultural-Historical Heritage.

Funding: National Science Fund, Competition for financial support for research projects – 2017.
Duration: 36 months
Starting date: December 2017
Beneficiary Organization: IICT-BAS,
Project Coordinator: Prof. Dr. Dimitar Karastoyanov


Abstract: in recent years, museums have welcomed millions of visitors to their galleries and exhibitions. However, museums have made little progress towards a concrete understanding of what visitors actually see when they look at works of art. While the impact on some visitors is very strong, the average visitor stops at less than half the exhibits and spends less than 30 seconds on individual artifacts ‒ in most cases, much less
Another important aspect is by using the possibilities of the information and communication technologies to provide access to the cultural and historical heritage objects for people with disadvantages (for example visually impaired or blind people) so that they can also "see" by touching with their fingers and hands. This will provide them better understanding the relevant presented object – painting, flag, etc.
Also, the results of the proposed project will give the opportunity to a wide range of users to meet the art in a closer way - with 3D models of unique and valuable cultural and historical artifacts that are now kept in vaults for security reasons and this treasures are inaccessible.
Until now, there has been almost no experience in 3D digitization of cultural and historical heritage, especially for disadvantaged people (visually impaired). In the world the ICT's main achievements in this area are mostly implemented in a assistive graphical user interface for people with visual impairments, so they can use computers (Windows icons, etc.).
Objects of the project are to build 3D models of scenes from the national cultural and historical heritage by extracting images from 2D sources - pictures, paintings, engravings. In the presented task, at first place must be modelled a 3D representation of the historical battles of the “Shipka Epopee” - August 1877, in connection with the upcoming celebrations in 2017 and 2018, as well as the presentation of results on the date of the National Day March 3, 2018, Related to possible foreign high level delegations for the celebration, the Bulgarian EU Presidency in 2018 and others.
Separately, the battle for the Samara flag near Stara Zagora and the feat of Lieutenant Colonel Kalitin will be presented, as well as by 3D scanning with an available 3D scanner of nowadays  presentations of the relic near Stara Zagora. For visually impaired people, 3D representation of different photos, paintings and scenes with additional alphabet of Braille inside the contours of the figures. Thus, people with visual impairment by touch will be able to "present" the picture, "see" it and "read it".

Project Title:
Hybrid electromagnetic systems with magnetic modulation.

Funding: National Science Fund, Competition for financial support for research projects – 2017.
Duration: 36 months
Starting date: December 2017
Beneficiary Organization: TU-Sofia
Project Coordinator: Prof. Dr. Ivan Yatchev
Partner Organization: IICT-BAS,
Project Coordinator from IICT: Prof. Dr. Dimitar Karastoyanov


Abstract: The applications of modern generations of magnetic and magneto-solid materials in recent years are expanding rapidly and lead to increasing the energy efficiency of a wide range static and dynamic electromagnetic systems.
The development guidelines for their applications are grouped in two directions:
- use of mechanical forces and moments;
- transformation of electrical energy by modulation of magnetic fluxes.
Both groups of applications are evolving towards the use of higher frequencies of action, which results to higher energy performance. These applications require a good understanding of both the static and the dynamic characteristics of the systems, and of the used permanent magnets. Existing knowledge about the characteristics of permanent magnets encompasses very well their static characteristics. There is a lack of knowledge about the dynamic characteristics of especially the latest high-energy permanent magnets.
The main objective of the project is to acquire new knowledge about the characteristics of modern models of permanent high-energy magnetic magnets and the new generations of magnetic materials, and in particular their dynamic characteristics, incl. and their resonance properties in the composition of electromagnetic systems in various methods for modulation of magnetic fluxes.
In addition to the theoretical research, the project will also aim at the implementation of modern experimental studies of the systems subject to the project.
Modern methods for computer modeling and optimization as well as for computer-controlled experimental research will be used for the implementation of the project.

Project Title:
Investigation and optimization of milling processes by using innovative grinding environments (lifters)

Funding: Competition for financial support for project of junior researchers and postdocs – 2017.
Duration: 18 months
Starting date: 20 December 2017
Beneficiary Organization: IICT-BAS,
Project Coordinator: Assist. Prof. Dr. Nikolay Stoimenov


Abstract: Milling of different materials is an important industrial process in which the material is crushed and milled to a desired predetermined size. Ball mills are widely used in various production areas, mainly metallurgy, mining and mineral processing, cement production, chemical industry, pharmaceuticals and cosmetics, ceramics, laboratory research, and etc. Depending on the specific area of application, the treated materials are with different properties like hardness, size, chemical composition and structure, examples of various types: ores, minerals, limestones and others. The project proposes a new technology to create a high hardness grinding environment with innovative high-temperature technology by using a Taman furnace. The sintering and use of nano elements of high wear-resistant Bor-based materials is an innovative novelty. A vacuum furnace will be used to cure the parts. To test the composition of the incoming materials (powders) as well as particle size distribution in the range 10 nanometers - 2000 microns, Laser Nano Sizer Analyzer 22 Nano Tech + will be used. 3D Computer Tomography NIKON XT H 225 will be used to study the 3D internal structure of materials and alloys with 3 microns accuracy. The two appliances, as well as Tamann and Vacuum furnaces, are available. Samples will be produced to study their characteristics. Experimental tests for hardness and wear resistance will be implemented. The working regime of the mill process will be modelled and simulate in real-size mills by using the EDEM Software's discrete-element software, also available at IICT-BAS. The aim of the project proposal is to be investigated the milling processes and optimize by innovative grinding media (lifters).

Project Title:
Information and communication technologies for 3D modeling and 3D tactile visualization of sites of cultural and historical heritage (3D modeling of 2D sources and 3D printing).

Funding: Bulgarian Academy of Sciences, Program for supporting Young Scientist 2017
Duration: 18 months
Starting date: 29 August 2017
Beneficiary Organization: IICT-BAS,
Project Coordinator: Assist. Prof. Dr. Stanislav Gyoshev


Abstract: The project focuses on 3D modeling of objects of cultural and historical heritage using 2D sources (paintings, icons, tapestries) and 3Dprinting of models with the addition of Braille symbols in the figures and Braille annotations for tactile (by touch) perception of object. New technologies, such as 3D printing and 3D visualization, have become more and more popular lately, because these technologies could be used by blind people to "see" works they had no idea.
The main objective of the project is digitalization of objects of cultural and historical heritage for disadvantaged people: Making various museum expositions and historical sights with the most advanced technologies for 3D modeling, 3D printing, 3D digitalization in order to "see" and understand visually impaired or fully blind people.
Making tactile images will allow blind and visually impaired people to "see" objects and pictures that they can not perceive otherwise. The blind people will be able to sense the contours of the individual figures in the picture, with Braille symbols in each figure that will give the blind person what the figure is with additional information written to Braille in the legend of the tactile image.