Statut
Post-doctorant
Bureau
3.1.23
Date d'arrivée
Date de départ

PostDoc Scientist at the European XFEL (2022-2025)

Introduction:

Doriana has a MSc. in Chemistry and a PhD Europaeus in Geosciences. She has ~7 years of experience in X-ray crystallography. Since April 2020, she is postdoc researcher at the PIMM lab (CNRS) where she does research in Materials Science (microstructure analysis of metals by means of time resolved X-ray diffraction). Currently, she is PostDoc Scientist at the Femtosecond X-ray Experiment beamline at the European X-ray Free Electrons Laser.

Research Project:

FastMat

DIFFABS beamline of SOLEIL Synchrotron (Ultrasonic fatigue machine on the 6-circles diffractometer)Several mechanical structures are subjected to repeated loadings during their lifespan and can break under stress lower than the ultimate tensile stress. This phenomenon, called fatigue of materials, has attracted the scientific community attention as several fractures occurring in many industrial sectors are due to fatigue. Therefore, it is important to characterize the fatigue life to ensure the safety and reliability of mechanical structures throughout their life service. Fatigue characterization requires tests during which the material is cyclically loaded at different stress until its fracture (S-N curves). However, it is common to find mechanical systems subjected to several billion cycles, in what is called the very high cycle fatigue (VHCF) domain [1]. Their fatigue characterization with conventional hydraulic fatigue machines, operating typically at 100Hz, requires excessive testing time (e.g. three years are necessary to reach 109 cycles). In order to reduce this limiting time, new approaches using ultrasonic fatigue machines operating between 20 and 30 kHz have been developed during the last decades[2-4]. Fatigue life is influenced by several factors, such as microstructure and residual stresses. It is well-know that X-ray diffraction analysis is a powerful tool to study the microstructure of a material (particularly a metal in this case) as the shift of the X-ray diffraction peak position provides the mean elastic lattice strain at the scale of the diffracting volume, and the line-broadening provides the elastic lattice strain heterogeneity. However, in X-ray diffraction studies on polycrystalline samples, the elastic line-broadening anisotropy did not receive so much attention. Therefore, the aim of my work is to show how it is possible to in-situ investigate the microstructure and residual stress of poly(mono)crystalline materials during ultrasonic fatigue test in VHCF domain by interpreting the X-ray line-broadening with a micromechanical model accounting for the specimen microstructure and residual stress.

[1] P. Bathias, C. Paris, Gigacycle fatigue in mechanical practice, Marcel Dekker, New York, 2005.

[2] I. Marines, C. Bathias, X. Bin, An understanding of very high cycle fatigue of metals, International Journal of Fatigue 25 (2003) 1101-1107.

[3] C. Fischer, R. Wagener, A. Friedmann, C. Axt, T. Melz, Piezoelectric driven testing facilities to research the very high cycle fatigue regime (2011) 427-432.

[4] W. Mason, Physical acoustics and the properties of solids, The Journal of the Acoustical Society of America 28 (6) (1956) 1197-1206.


Qualification

​​​​2016 - 2019: Ph.D. Europaeus in Geosciences at University of Bari | Experimental thesis in Crystallography and Mineralogy.
2013 - 2015: Master Degree in Chemicals Science at University of Bari Aldo Moro | Experimental Thesis in Crystallography and Inorganic Chemistry.
2009 - 2012: Bachelor degree in Chemicals Science and Technology at University of Bari Aldo Moro | Experimental Thesis in Physical Chemistry.


Research interests

Crystallography, X-ray diffraction, Material characterization, Mineralogy, Microscopy, Synthesis, Rietveld refinement, Modeling and simulation of disordered materials.


Publications

1) D. Vinci, B. Dazas, E. Ferrage, M. Lanson, V. Magnin, N. Findling, B. Lanson (2020), Influence of layer charge on hydration properties of synthetic octahedrally- charged Na-saturated trioctahedral swelling phyllosilicates. Applied Clay Science, 184, p. 105404-105423. https://doi.org/10.1016/j.clay.2019.105404

2) D. Vinci, B. Lanson, M. Lanson, V. Magnin, N. Findling (2020), Hydration of Na-saturated synthetic stevensite, a peculiar trioctahedral smectites, Clay Minerals. p. 1-9. https://doi.org/10.1180/clm.2020.32  

3) E. Schingaro, G. Ventruti, D. Vinci, G. Balassone, N. Mondillo, F. Nieto, M. Lacalamita, M. Leoni (2021), New insight into the crystal chemistry of sauconite (Zn-smectite) from the Skorpion zinc deposit (Namibia) via à multi-methodological approach. American Mineralogist. http://dx.doi.org/10.2138/am-2020-7460

4) V. Jaquemain, N. Ranc, C. Cheuleu, V. Michel, V. Favier, O. Castelnau, D. Vinci, D. Thiaudiere, C. Mocuta. (2021) Estimation of stress in specimens loaded with ultrasonic fatigue machines. International Journal of Fatigue. In press. https://doi.org/10.1016/j.ijfatigue.2021.106474


Experiences

Chercheuse post-doc  Laboratoire PIMM, Arts et Métiers Institute of Technology, CNRS, HESAM Université, Since 2020/04 -

ERC FASTMAT project, consolidator grant (2017-2022) Fast determination of fatigue behavior of materials beyond one billion cycle.

Lecturer Conservatoire national des arts et métiers Paris (France), 2021/10 – 2021/11 [7 HEURES TP]

Materials Characterization (Ingénieurs matériaux MTX)

Lecturer Conservatoire national des arts et métiers Paris (France), 2021/03 – 2021/06 [34,5 HEURES TP]

Materials Characterization (Ingénieurs matériaux MTX) 24H, Materials properties (DUT Mesures Physiques) 10,5H

Engineer  Laboratoire PIMM, Arts et Métiers Institute of Technology, CNRS, HESAM Université, 2020/01 – 2020/04

Visiting PhD student  ISTerre/CNRS, Universite de Grenoble Alpes, 2018/01 – 2019/09

PhD student Universite "Aldo Moro" di Bari (Italy), 2016/11 – 2019/10


Conferences:

Legend: Oral presentation (O) Poster presentation (P)

  • IV Meeting of the Italian and Spanish Crystallographic Associations, 21–25 June 2016, Tenerife, Spain (O, P)
  • 2nd International Conference on Applied Mineralogy & Advanced Materials 13th International Conference on Applied Mineralogy, 5-9 June 2017, Castellaneta Marina (Italy). (O)
  • XLVI Meeting of “Associazione Italiana di Cristallografia”, 26-29 June 2017, Perugia (Italy). (P)
  • 16th International Clay Conference, 17-21 July 2017, Granada (Spain). (P)
  • SIMP-SGI-AIV-SoGel Congress, 4-6 September 2017, Pisa (Italy). (O),(P)
  • EUROCLAY: international conference on clay science and technology, 1-5 July 2019, Paris (France). (O),(P) 
  • ECM32, 18-22 Aug 2019, Vienna (Austria). (P)
  • 2021 MRS VIRTUAL SPRING MEETING & EXHIBIT, 17-23 April 2021 (online). (O),(P) 
  • Congrès de l’Association Française de Cristallographie, 29 June-02 July 2021 (online). (O) 
  • VHCF8, 05-09 July 2021 (online). (O) 
  • 70th Annual Denver X-ray Conference, 02-06 August 2021 (online). (O),(P)
  • 25th IUCr Conference, 14-22 Augustt 2021 (online). (O)
  • Rayons X et Matière – 14e édition, 23-26 November 2021, Aix-en-Provence (France). (O),(P)

Courses:

  • 03/2016 – 05/2016: Diffrazione di raggi-X per polveri. Department of Chemistry, University of Bari (Italy)
  • 25/09/2017 – 28/09/2017: SEM (Scanning Electron Microscopy). DiSTeGeo, University of Bari (Italy)
  • 03/2017 - 04/2017: MatLab. DiSTeGeo, University of Bari (Italy)
  • 16/10/2017 – 18/10/2017: Microtomography. DiSTeGeo, University of Bari (Italy)
  • 22/01/2018 – 26/01/2018: Crystal structure of finely divided solids - part 2. Faculté de Sciences Fondamentales et Appliquées, Université de Poitiers (France)
  • 25/02/2018 – 29/03/2018: Higher European Research Course for Users of Large Experimental Systems. CNRS, Grenoble (France)
  • 4/06/2018 – 8/06/2018: Introduction to structural crystallography and diffraction. University of Padua (Italy)
  • 29/08/2018 – 02 Septembre 2018AIC International School of Crystallography: Powder Diffraction: theory, experiments and applications. Bari (Italie). 
  • 22-26/03/2021: HZB Photon school (online). 
  • 05–09/07/2021: 11th WORKSHOP on Combined Analysis Using Ray Scattering. CRISTMAT-ENSICAEN. Caen (France).

Seminars

Invited talk (I)

  • L’ordine nell’invisibile: un secolo di cristallografia. University of Bari “Aldo Moro”, Bari (Italy); 14/03/2014
  • La strana storia dei materiali impossibili. University of Bari “Aldo Moro”, Bari (Italy);  21/05/2015
  • Geopolimeri: cosa sono, come si fanno e perché. University of Bari “Aldo Moro”, Bari (Italy); 30/09/2015
  • Tecniche di diffrazione per la caratterizzazione di farmaci. University of Bari “Aldo Moro”, Bari (Italy); 19/02/2016
  • Microscopy without microscope: structure and microstructure analysis with powder diffraction. University of Bari “Aldo Moro”, Bari (Italy);  13/07/2017
  • Earth Sciences PhD Days. University of Pisa (Italy); 7-8 September 2017.
  • Quantification de phases par diffraction des rayons X : ISTerre à l’honneur. ISTerre/CNRS, Université Grenoble Alpes (France); 2 October 2018.
  • Mars, le 1er milliard d'années. ISTerre/CNRS, Université Grenoble Alpes (France); 4 October 2018.
  • Influence of charge density and charge location on smectite hydration. ISTerre/CNRS, Université Grenoble Alpes (France); 4 December 2018. (I)
  • Science opportunities in condensed-phase chemistry with femtosecond hard X-ray methods. European XFEL (Online). 2-3 November 2021

Whorkshop

  • 10/06/2014 – 14/06/2014: International SIR/EXPO workshop. Istituto di Cristallografia-CNR. University of Bari “Aldo Moro”, Bari (Italy)
  • 22/02/2017:  L'esperimento flessibile: studi di diffrazione in condizioni non ambientali. Commissione di strumentazione e calcolo dell’Associazione Italiana di Cristallografia. University of Bari “Aldo Moro”, Bari (Italy)
  • 17/09/2018 – 19/09/2018: Nanomaterial Microscopy & Microanalysis: Tools and Preparation. ISTerre/CNRS, Université Grenoble Alpes (France)

Scholarship

  • 28/08/2014 – 6/09/2014: First European School of Crystallography.  Pavia (Italy).
  • 7/09/2016 – 11/09/2016:  AIC International School of Crystallography: Polymorphism, stability and phase transition in crystals: theory, experiments and applications. Rimini (Italy).
  • 29/08/2018 – 02/09/2018: AIC International School of Crystallography: Powder Diffraction: theory, experiments and applications. Bari (Italy).

Awards:

  • 9th biennial Reynold’s Cup competition: 2nd place (2018) N.Findling; B.Lanson; D.Vinci  (http://www.clays.org/Reynolds.html)
  • The Clay Minerals Society Student Travel Award (2019) 
  • Robert L. Snyder Student Traval Award (2019)
  • IUCr Young Scientist Award (2019)
     

Membership:

International Center for Diffraction Data, French Association of Crystallography

Web Pages for Scientific Dissemination: 

https://www.facebook.com/groups/crystallography.world

https://twitter.com/crystallo_world