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Crystal chemistry of composite materials

Field of Scientific Interest

The “Crystallochemistry of  Composite Materials” Laboratory develops activities in the field of crystallochemistry including synthesis, structural and microstructural characterization as well as applications of inorganic solid materials – oxide ceramics, metals, alloys and composite compounds with interesting optical, mechanical, electrical, magnetic, sensing and catalytic properties. The search for new, non-classical approaches to crystal engineering is focused on the methods of “soft chemistry" – synthesis by solution combustion, sonochemical synthesis, coprecipitation etc., allowing the production of materials with structural and morphological characteristics suitable for selected application. In recent years, research has been focused on oxide nanomaterials. The chemical and physical properties of materials are studied, with a particular emphasis on X-ray diffraction techniques, including qualitative and quantitative phase analysis, analysis of diffraction line broadening to determine crystallite size, size distribution and microstrains. The laboratory specializes in refining of crystal structures using the Rietveld method. The analysis of the results is placed in the context of the structure-property relationship.

Selected Publications

  1. Zheleva, Z., Kovacheva, D.
    Influence of the type of fuel used for the solution combustion synthesis on the structure, morphology and magnetic properties of nanosized NiFe2O4.
    Journal of Alloys and Compounds, 2017, 272-283.
    ISI IF:3.779    ISI IF – Q1
  2. Gyurov, S., Marinkov, N., Kostova, Y., Rabadjieva, D., Kovacheva, D., Tzvetkova, C.,Gentscheva, G., Penkov, I..
    Technological scheme for copper slag processing.
    International Journal of Mineral Processing, 158, 2017, 1-7
    SJR:0.852, ISI IF:1.617   С ISI IF – Q1,
  3. Marinkov, N., Markova-Velichkova, M., Gyurov, S., Kostova, Y., Spassova, I., Rabadjieva, D., Kovacheva, D., Penkov, I., Tzvetkova, Chr.,Gentscheva, G.
     Preparation and characterization of silicagel from silicate solution obtained by autoclave treatment of copper slag.
    Journal of Sol-Gel Science and Technology, 87, 2, 2018, 331-339.
    ISI IF:1.745, ISI IF – Q1
  4. Gancheva, M., Markova-Velichkova, M., Atanasova, G., Kovacheva, D., Uzunov, I., Cukeva, R.
    Design and photocatalytic activity of nanosized zinc oxides.
    Applied Surface Science, 368, 2016, 258-266. SJR:1.093
    ISI IF:3.38,  ISI IF – Q1
  5. Radev, D., Avramova, I., Kovacheva, D., Gautam, D., Radev, I.
    Synthesis of Boron Carbide by Reactive-Pulsed Electric Current Sintering in the Presence of Tungsten Boride.
    International Journal of Applied Ceramic Technology, 13, 6, 2016, 997-1007.
    SJR:0.446, ISI IF:1.534, ISI IF – Q2
  6. Koseva, I., Ivanov, V., Simanovskiy, D., Marychev, M., Andreev, P., Tzvetkov, P., Nikolov, V.
    Ca2GeO4:Cr4+ transparent nano-glass ceramics.
    Journal of Non-Crystalline Solids, 456, 2017, 76-82.
    ISI IF:1.825  С ISI IF – Q2

Cooperation

  • Bar-Ilan University Ramat Gan, Israel
  • Saints Cyril and Methodius University of Skopje, Republic of North Macedonia
  • Saint-Petersburg State Institute of Technology, Saint-Petersburg, Russia.

Staff:

Daniela Kovacheva

Prof., PhD, Head of laboratory

Call: +359 2 979 25 87

Email: didka@svr.igic.bas.bg, dkovacheva@gmail.com

    Petar Tzvetkov

    Assoc. Prof., PhD

    Call: +359 2 979 25 18

    Email: tzvetkov@svr.igic.bas.bg

      Tsvetomila Lazarova-Kyuleva

      PhD Chemist

      Call: +359 2 979 25 26

      Email: cveti_ura@abv.bg

        Dimitar Radev

        Assoc. Prof., PhD

        Call: +359 2 979 25 41

        Email: d_dradev@svr.igic.bas.bg

          Venzislav Tumbalev

          Chemist

          Call: +359 2 979 25 26

          Email: tumbalev@svr.igic.bas.bg

            Gergana Burdina

            Chemist

            Call: +359 2 979 25 26

              Nikolai Marinkov

              Chemist

              Call: +359 2 979 35 81

                Diana Kichukova

                PhD student

                Call: +359 2 979 25 26