Mergia Konstantina (Dina)

Director of Research

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+30 210 6503706

Dr K. Mergia is responsible for the Fusion Technology Programme of NCSRD and coordinator of the related activities of fifteen (15) researchers. She is supervisor of four PhD theses in the field of Fusion Materials. Member of the Fusion for Energy (F4E) governing board. Greek representative in the European Neutron Scattering Association, evaluator of the RADIATE project (access to ion beam centers), member of the editorial board of the Hellenic Neutron Association (HENA) newsletter.

Her research topics refer to fusion materials research, radiation damage, plasma facing materials and components, phase transformations and transport phenomena, ceramic-metal interactions, surface oxidization phenomena, material engineering (porosity, internal stresses, oxidation barriers, materials joining) and magnetic materials (FeCr alloys and steels, magnetic thin films, spin-glasses).

She has been scientific responsible and work-package leader for several European and IAEA projects and tasks of the European Fusion Programme. The total funding obtained for these projects was 4.5 M€ (2003-2020). Research areas of these projects are on fusion materials, materials for extreme environments and aerospace materials and components.

She has authored more than 80 publications in peer reviewed journals, more than 100 publications in conference proceedings and more than 100 scientific reports. She is acting as a referee in 12 journals. She has strong collaborative links with many eminent European Research Centres and Universities such as Rutherford Appleton Laboratories, UK, SCK CEN, Belgium, Culham Centre for Fusion Energy, UKAEA, UK, Helmholtz-Zentrum Dresden-Rossendorf, Germany, TECNALIA Research and Innovation, Spain, Technical University of Turin, Italy, Polish Academy of Science, Institute of Physics, Poland.  These collaborative links have been materialized through common publications and research projects.

She has developed extensive laboratory facilities in the areas of a) structural characterization of materials from nano- to macro-scale (X-Ray diffractometer, X-Ray reflectometer, field emission scanning electron microscope with energy dispersive spectrometer, X-Ray fluorescence spectrometer), b) mechanical properties (nano- and micro-depth sensing indenters, universal testing machine, impulse excitation apparatus), c) defects in materials (positron annihilation lifetime spectrometer), d) electrical properties of materials (electrical apparatus), e) sample fabrication and processing (magnetron sputtering apparatus, high temperature systems), and f) metallography (optical microscopes, polishers, electropolisher).

 

Publications

2011

Stefanopoulos, K. L., Romanos, G. E., Vangeli, O. C., Mergia, K., Kanellopoulos, N. K., Koutsioubas, A., & Lairez, D. (2011). Investigation of Confined Ionic Liquid in Nanostructured Materials by a Combination of SANS, Contrast-Matching SANS, and Nitrogen Adsorption. Langmuir, 27 (13), 7980–7985. doi:10.1021/la201261r

2010

Mergia, K., Stefanopoulos, K. L., Ordás, N., & García-Rosales, C. (2010). A comparative study of the porosity of doped graphites by small angle neutron scattering, nitrogen adsorption and helium pycnometry. Microporous and Mesoporous Materials, 134 (1–3), 141–149. doi:10.1016/j.micromeso.2010.05.019
Alexandrakis, V., Niarchos, D., Mergia, K., Lee, J., Fidler, J., & Panagiotopoulos, I. (2010). Magnetic properties of graded A1/L1 films obtained by heat treatment of FePt/CoPt multilayers. Journal of Applied Physics, 107 (1). doi:10.1063/1.3275925
Moutis, N. V., Jimenez, C., Azpiroz, X., Speliotis, Th., Wilhelmi, C., Messoloras, S., & Mergia, K. (2010). Brazing of carbon–carbon composites to Nimonic alloys. Journal of Materials Science, 45 (1), 74–81. doi:10.1007/s10853-009-3893-x

2009

Apostolopoulos, G., Mergia, K., & Youtsos, A. G. (2009). Neutron scattering techniques as a tool for nondestructive testing. International Journal of Microstructure and Materials Properties, 4 (1), 19. doi:10.1504/IJMMP.2009.028430
Mergia, K., Liedtke, V., Speliotis, T., Apostolopoulos, G., & Messoloras, S. (2008). Thermo-Mechanical Behaviour of HfO2 Coatings for Aerospace Applications. Advanced Materials Research, 59, 87–91. doi:10.4028/www.scientific.net/amr.59.87 [PDF]
Mergia, K., Grattarola, M., Messoloras, S., Gualco, C., & Hofmann, M. (2008). Residual Stress Measurements in Mo/CuCrZr Tiles Using Neutron Diffraction. Advanced Materials Research, 59, 299–303. doi:10.4028/www.scientific.net/amr.59.299 [PDF]
Moutis, N. V., Jimenez, C., Speliotis, T., Azpiroz, X., & Mergia, K. (2008). Graphite-Nimonic Alloy Brazing. Advanced Materials Research, 59, 209–213. doi:10.4028/www.scientific.net/amr.59.209 [PDF]

2008

Mergia, K., Lafatzis, D., Moutis, N., Speliotis, T., Apostolopoulos, G., & Cousin, F. (2008). Oxidation behaviour of SiC coatings. Applied Physics A, 92 (2), 387–395. doi:10.1007/s00339-008-4536-9
Mergia, K., & Messoloras, S. (2008). A small angle neutron scattering study of the spin-glass Fe90Nd3Zr7amorphous alloy. Journal of Physics: Condensed Matter, 20 (10), 104219. doi:10.1088/0953-8984/20/10/104219
Mergia, K., & Boukos, N. (2008). Structural, thermal, electrical and magnetic properties of Eurofer 97 steel. Journal of Nuclear Materials, 373 (1–3), 1–8. doi:10.1016/j.jnucmat.2007.03.267
Apostolopoulos, G., Mergia, K., & Messoloras, S. (2008). ‘Venetian blinds’-type stacked neutron mirrors. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 586 (1), 100–104. doi:10.1016/j.nima.2007.11.054

2006

Baczewski, L. T., Pankowski, P., Wawro, A., Mergia, K., Messoloras, S., & Ott, F. (2006). Induced magnetism at interfaces in ultra-thin epitaxial V∕Gd bilayers. Phys. Rev. B, 74 (7), 075417. doi:10.1103/PhysRevB.74.075417

2004

Stamatelatos, I. E., Mergia, K., Lefkopoulos, G., & Forrest, R. (2004). Impurities and evaluation of induced activity of SiCf/SiC composites. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 213, 511–514. doi:10.1016/s0168-583x(03)01614-8
Mergia, K., Salevris, A., & Messoloras, S. (2004). The new neutron powder diffractometer at “Demokritos” research reactor. Physica B: Condensed Matter, 350 (1–3), 162–165. doi:10.1016/j.physb.2004.04.019
Pankowski, P., Baczewski, L. T., Story, T., Wawro, A., Mergia, K., & Messoloras, S. (2004). Magnetic properties of ultra‐thin epitaxial V/Gd bilayers. Physica Status Solidi (c), 1(2), 405–408. doi:10.1002/pssc.200303955

2003

Mergia, K., & Messoloras, S. (2003). Optimization of a focusing monochromator. Review of Scientific Instruments, 74 (2), 931–937. doi:10.1063/1.1532834

2002

Mergia, K., Baczewski, L. T., Messoloras, S., Hamada, S., Shinjo, T., Gamari-Seale, H., & Hauschild, J. (2002). Polarized neutron reflectivity study of a Gd/Cr multilayer. Applied Physics A: Materials Science & Processing, 74 (0), s1520–s1522. doi:10.1007/s003390201706
Mergia, K., Salevris, A., & Messoloras, S. (2002). Calibration of neutron linear position sensitive detector. Applied Physics A: Materials Science & Processing, 74 (0), s145–s147. doi:10.1007/s003390201928

2000

Mergia, K., Messoloras, S., Al-Hazmi, F., & Stewart, R. J. (2000). Study of the precipitation kinetics in an Al–8.9 at.% Li alloy using small-angle neutron scattering. Philosophical Magazine A, 80 (11), 2609–2628. doi:10.1080/01418610008216495