Closing the gap between timescales in the laboratory and in the mantle
Previous speakers
Federico GRASSELLI
(University of Modena and Reggio Emilia, Modena, Italy)
Simulating transport properties of superionic materials (Video)
Thursday 3 October 2024
F. Grasselli, L. Stixrude & S. Baroni, Nature Commun. 11, 3605 (2020)
F. Grasselli, J. Chem. Phys. 156, 134705 (2022)
Moderator: P. Carrez
Wenjun LU
(Southern University of Science and Technology, Shenzhen, China)
Exploring the Dynamic Behavior of Compositionally Complex Alloys through Real-Time Observation with In Situ TEM/STEM
Thursday 5 September 2024
Fang et al. (2024) J. Am. Ceram. Soc., Qian et al. (2024) Advanced Materials, Lu et al. (2023) Acta Materialia, Lu et al. (2020) Acta Materialia
Moderator: X. Fang
Hidehiro YOSHIDA
(The University of Tokyo, Japan)
High temperature plastic deformation in oxide ceramics accelerated under electric field and current: the origin and related phenomena (Video)
Thursday 4 July 2024
Motomura et al. (2022) Journal of the European Ceramic Society
Moderator: P. Cordier
Claire ONOFRI
(CEA, Cadarache, France)
Versatility of dislocation motions in polycrystalline UO2 investigated by TEM (Video)
Thursday 20 June 2024
Onofri et al. (2024) Scripta Materialia
Moderator: P. Hirel
Taras GERYA
(Department of Earth Sciences, ETH Zürich, Switzerland)
Continents, oceans, plate tectonics and missing extraterrestrial civilizations (Video)
Thursday 13 June 2024
Stern & Gerya (2024) Sci. Rep.
Moderator: P. Carrez
Daniel H. RICHARDS
(University of Tasmania, Hobart, Australia)
Towards a reliable, efficient model of how ice crystal orientations affect the flow of ice sheets (Video)
Thursday 6 June 2024
Richards et al. (2023) JGR Solid Earth
Moderator: P. Carrez
Hiroshi MASUDA
(Department of Materials Engineering, The University of Tokyo, Japan)
Small-scale plasticity of oxide ceramics: impacts of orientations and grain boundaries (Video)
Thursday 23 May 2024
Masuda et al. (2020), Acta Materialia; Nakamura et al. (2023) J. Am. Ceram. Soc.
Moderator: H. Idrissi
Claudia TREPMANN
(Ludwig-Maximilians-Universität München, Germany)
Quartz cleavage fracturing and subsequent recrystallization along the damage zone recording fast stress unloading (Video)
Thursday 11 April 2024
Brückner et al. (2024) J. Struct. Geol.
Moderator: P. Carrez
Rajkrishna DUTTA
(Department of Geosciences, Princeton University)
High-pressure order-disorder transition in Mg2GeO4 and Mg2SiO4: Implications for super-Earth mineralogy (Video)
Thursday 21 March 2024
Dutta et al. (2022) PNAS; Dutta et al. (2023) Phys. Rev. B
Moderator: P. Carrez
Nadezhda SHCHEDRINA
(Université Paris-Saclay)
Electron irradiation effects on the activation energy distribution in densified silica (Video)
Thursday 7 March 2024
Shchedrina et al. (2023) J. Non-Cryst. Solids
Moderator: P. Cordier
Laurent CAPOLUNGO
(Los Alamos National Laboratory)
Plasticity in nanometallic laminates: unraveling the mechanism of kink banding
Wednesday 14 February 2024
To learn more: Zhang et al. (2023) Acta Mat.; Zecevic et al. (2023) J. Mech. Phys. Solids; Zecevic et al. (2022) Mech. Mat.
Moderator: P. Cordier
Gashaw BIZANA
(Georgia Institute of Technology, Atlanta, Georgia, USA)
Kinetics of grain boundary migration in nanocrystalline Al (Video)
Thursday 1st February 2024
To learn more: Bizana & Barrales-Mora (2023), Acta Materialia, Bizana & Barrales-Mora (2023), Computational Material Science
Moderator: J. Furstoss
Dierk RAABE
(Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany)
The role of microstructure in green steel production via hydrogen-based direct reduction of iron oxides (Video)
Thursday 19 October 2023
To learn more: Raabe et al; (2019) Nature, Raabe (2023) Chemical Reviews
Moderator: H. Idrissi
Seán R. KAVANAGH
(University College London & Imperial College London, UK)
Predicting the Atomic Structures of Defects in Solids (Video)
Thursday 5 October 2023
To learn more: Mosquera-Lois et al. (2023) npj computational materials
Moderator: J. Furstoss
Xuyang (Rhett) ZHOU
(Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany)
Revealing atomic motifs for grain boundary decoration in iron (Video)
Thursday 28 September 2023
To learn more: Zhou et al. (2023) Nature Comm.
Moderator: H. Idrissi
Roberto B. FIGUEIREDO
(Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil)
A deformation mechanism to explain the effect of grain size on flow stress (and the role played by temperature and strain rate) (Video)
Thursday 14 September 2023
To learn more: Figueiredo et al. (2023) Progress Mat. Sci.
Moderator: A. Mussi
Falko LANGENHORST
(Friedrich-Schiller-Universität Jena (and Ries crater on the left), Germany)
A rosiaite-structured high-pressure silica phase and its relation to lamellar amorphization in quartz
Thursday 22 June 2023
To learn more: Otzen et al. (2023) Nature Communications
Moderator: P. Cordier
Sean MILLS
(University of California at Berkeley, USA)
Nanoscale mapping of point defect concentrations via temperature, irradiation, and corrosion with 4D-STEM
Thursday 8 June 2023
To learn more: Mills et al. (2023) Acta Materialia; Yang et al. (2023) Nature Communications
Moderator: P. Cordier
Sunyoung PARK
(The University of Chicago, USA)
Earth’s Response to Deep Earthquakes: Insights into Mantle Rheology (Video: Partial !)
Thursday 11 May 2023
To learn more:
Park et al. (2022) Scientific Report; Park et al. (2023) Nature
Moderator: P. Cordier
Bin FENG
(Institute of Engineering Innovation, The University of Tokyo, Japan)
STEM-EDS investigation of grain boundary segregation in oxide materials
Thursday 13 April 2023
To learn more:
Yang et al., (2020) Acta Mater; Feng et al. (2016) Nature Comm; Feng et al. (2017) ACS Nano
Moderator: H. Idrissi
Normand MOUSSEAU
(Université de Montréal, Québec, Canada)
Entropic effects in concentrated solid solutions : the unexpected role of diffusion prefactors (Video)
Thursday 9 March 2023
To learn more: Gelin et al. (2020) Nature Communications; Sauvé-Lacoursière et al. (2022) Acta Materialia
Moderator: P. Carrez
Qi AN
(Department of Materials Science and Engineering, Iowa State University, Ames, USA)
Anomalous Brittle Failure of Superhard Boron Carbide
Thursday 16 February 2023
To learn more: Li & An (2023) J. Eur. Ceram Soc.
Moderator: H. Idrissi
Atsutomo NAKAMURA
(Department of Mechanical Science and Bioengineering, Osaka University, Machikaneyamacho 1-3, Toyonaka, Osaka 560-8531, Japan)
Behavior and functionality of dislocations in inorganic crystals (Video)
Thursday 19 January 2023
To learn more: Oshima et al. (2018) Science; Matsunaga et al. (2020) Acta Materialia; Nakamura et al. (2021) Nano Letters
Moderator: Philippe Carrez
Douglas L. MEDLIN
(Sandia National Laboratories, Livermore, CA 94551 USA)
Exploring the interactions between interfacial disconnections and grain boundary facet junctions (Video)
Thursday 10 November 2022
To read more: Medlin et al. (2017) Acta Materialia; Barr et al. 52022) Science Advances
Moderator: P. Cordier
Eric BURDETTE
(Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI, USA)
Creep of Intact Antigorite: Low Temperature Plastic Rheology Measured On a Sheet Silicate (Video)
Thursday 27 October 2022
To learn more: Burdette & Hirth (2022) JGR Solid Earth
Moderator: P. Cordier
Joshua MUIR
(State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang , China)
Understanding the atomistic nature of defects in minerals: A case study of water and boron in olivine
Thursday 13 October 2022
To learn more: Muir et al. (2022) JGR; Muir et al. (2022) PCM1; Muir et al. (2022) PCM2
Moderator: P. Carrez
Xufei FANG
(Department of Materials and Earth Sciences, Technical University of Darmstadt, Darmstadt, Germany)
Room-temperature Dislocations in Oxides: Understanding, Engineering, and Application (Video)
Thursday 22 September 2022
To learn more: Okafor et al. (2022) Journal of the American Ceramic Society
Moderator: P. Cordier
Yasuko TAKEI
(Department of Earth and Planetary Science, University of Tokyo, Tokyo, Japan)
Rock anelasticity due to grain boundary sliding: experimental data and seismological application (Video)
Thursday 8 September 2022
To learn more:
Takei, Y. (2017) Annual Review of Earth and Planetary Sciences, Takei, Y. (2022), JGR-solid Earth
Moderator: C. Bollinger
Qi ZHU
(Nanyang Technological University, Singapore)
Hierarchical twinning governed by defective twin boundary in metallic materials (Video)
Monday 11 July 2022
To learn more: Zhu et al. (2022) Sci. Adv.
Moderator: H. Idrissi
Ting ZHU
(Georgia Institute of Technology, Atlanta)
Integrating in situ experiment and atomistic modeling to decipher grain boundary deformation mechanisms (Video)
Thursday 16 June 2022
To learn more: Wang et al. (2022) Science and Zhu group website
Moderator: P. Cordier
Tomoo KATSURA
(Bayerisches Geoinstitut, University of Bayreuth, Germany)
Accurate determination of the akimotoite-bridgmanite transition and dissociation of ringwoodite to bridgmanite plus periclase and a new interpretation for the depression of the 660-km discontinuity under cold subduction zones (Video)
Wednesday 1st June 2022
To learn more: Chanyshev et al. (2022) Nature
Moderator: P. Cordier
Colin OPHUS
(Lawrence Berkeley National Laboratory, California, United States)
Analyzing atomic-scale structure and deformation using 4D-STEM (Video)
Monday 23 May 2022
To learn more: Ophus (2019) Microscopy and Microanalysis
Moderator: H. Idrissi
Julien GUÉNOLÉ
(LEM3 – Université de Lorraine – CNRS – Arts et Métiers ParisTech, Metz, France)
Atomistic Aspects of the Plasticity in Complex Intermetallics
To learn more: Guénolé et al. (2019) Scripta Materialia, Guénolé et al. (2021) Mater. & Design, Xie et al. (2021) J. Mater. Res., Guénolé et al. (2022) Scripta Materialia
Thursday 24 March 2022
Moderator: P. Hirel
Satoshi HATA
Department of Advanced Materials Science, Kyushu University, Fukuoka 816-8580, Japan
The Ultramicroscopy Research Center, Kyushu University, Fukuoka 819-0395, Japan
Toward 3D visualization of dislocation dynamics under deformation using transmission electron microscopy
To learn more: Zhao et al. (2021) Scientific Reports, Petersen et al. (2022) Ultramicroscopy
Thursday 24 February 2022
Moderator: A. Mussi
Oliver TSCHAUNER
(University of Nevada in Las Vegas)
High-pressure minerals as inclusions in diamonds
To learn more: Tschauner et al. (2021) Science
3 February 2022
Moderator: S. Demouchy
Jie DENG
(University of California, Los Angeles)
Machine learning silicate systems at extreme conditions
To learn more: Deng & Stixrude (2021) Geophysical Research Letters
20 January 2022
Moderator: P. Carrez
Haofei ZHOU
(Center for X-mechanics, Department of Engineering mechanics, Zhejiang University)
Nanotwin-mediated deformation in metals
To learn more: Zhu et al. (2021) Science Advances; Zhu et al. (2020) Nature Communications; Cheng et al. (2018) Science; Pan et al. (2017) Nature ; Zhou et al. (2014) Nano Letters
Thursday 6 January 2022
Moderator: P. Cordier
Yuichi IKUHARA
(The University of Tokyo & Nanostructures Res. Lab., Japan Fine Ceramics Center, Nagoya & Tohoku University, Sendai, Japan)
Atomistic Dynamics of Deformation, Fracture and GB Migration in Oxides
To learn more: Wei et al. (2021) Nature Materials
Thursday 16 December 2021
Moderator: H. Idrissi
Gregory S. ROHRER
(Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, USA)
New Perspectives on Grain Boundary Migration in Polycrystals
Tuesday 16 November 2021
Moderator: A. Kashiwar
Timothy J. RUPERT
(Department of Materials Science and Engineering, University of California, Irvine, USA)
Using a typically brittle structure to toughen nanocrystalline metals
Thursday 28 October 2021
Moderator: P. Cordier
Jonathan AMODEO
(MATEIS laboratory, Villeurbanne, France & IM2NP laboratory, Aix-Marseille University, France)
On the influence of shape and nanostructure on the mechanics of nanoparticles
To learn more: Amodeo & Pizzagalli (2021) Comptes Rendus Physique
Thursday 14 October 2021
Moderator: P. Carrez
Roger A. DE SOUZA
Institute of Physical Chemistry, RWTH Aachen University, Aachen, Germany
Unusual aspects of ion migration in perovskites
To learn more: Heelweg & De Souza (2021) Phys. Rev. Materials; Parras et al. (2021) J. Am. Ceram. Soc.; Parras & De Souza (2020) Acta Mat.; De Souza (2017) J. Mater. Chem.; Waldow & De Souza (2016); Ramadan et al; (2016) Acta Mat.; Metlenko et al. (2014) Nanoscale;
Thursday 30 September 2021
Moderator: P. Carrez
Andrew M. MINOR
(University of California, Berkeley)
Elimination of oxygen sensitivity in α-titanium
To learn more: O in Titanium: Zhang et al. (2019) Science Advances; Chong et al. (2020) Science Advances; Chong et al. (2021) Nature Communications;
Electroplastic effect: Zhao et al. (2021) Nature Communications;
Nanotwinned Ti: Zhao et al. (2021) Science
4D-STEM: Zeltmann et al. (2020) Ultramicroscopy;
Thursday 9 September 2021
Moderator: Hosni Idrissi
Izabela SZLUFARSKA
(Department of Materials Science & Engineering, University of Wisconsin – Madison, USA)
Fracture behavior of metal-ceramic and metal-metal nanolaminates
To learn more: Luo et al. (2019) Nature Comm. - Luo et al. (2020) Materials Sci. & Eng. - Wei et al. (2021) - Shi & Szlufarska (2020) - Shi & Szlufarska (2021)
Thursday 24 June 2021
Moderator: P. Cordier
Jon MOLINA-ALDAREGUIA
(IMDEA Materiales Institute, Madrid, Spain)
Fracture behavior of metal-ceramic and metal-metal nanolaminates
Thursday 10 June 2021
Moderator: A. Pip
Chris J. MARONE
(La Sapienza Università di Roma & Pennsylvania State University)
Friction laws for slow earthquakes and the spectrum of fault slip behaviors
To learn more: Im et al. (2020) Nature Geoscience 13, 705–710. https://doi.org/10.1038/s41561-020-0627-9
Thursday 20 May 2021
Moderator: H. Rattez
Federica COPPARI
(Lawrence Livermore National Laboratory, Livermore, CA)
Terapascal laser-compression and X-ray diffraction experiments to understand material behavior deep inside planets
To learn more: Coppari et al. (2013) Nature Geoscience 6, 926. https://doi.org/10.1038/ngeo1948
Coppari et al. (2021) Nature Geoscience 14, 121. https://doi.org/10.1038/s41561-020-00684-y
Tuesday 11 May 2021
Moderator: P. Cordier
Jiangwei WANG
(Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR. China)
Grain boundary dominated plasticity in metallic nanomaterials
To learn more: Zhu et al. (2019) Nat. Commun. 10, 156. https://doi.org/10.1038/s41467-018-08031-x
Zhu et al. (2020) Nat. Commun. 11, 3100 https://doi.org/10.1038/s41467-020-16869-3
Zhu et al. (2020) Acta Mater. 199, 42-52 https://doi.org/10.1016/j.actamat.2020.08.021
Thursday 15 April 2021
Moderator: H. Idrissi
Xavier MAEDER
(Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Thun, Switzerland)
In-situ and 3D HR-EBSD techniques to assess deformation mechanism of materials at small scale
To learn more: Della Ventura et al. (2021) Materials & Design 197, 109206. https://doi.org/10.1016/j.matdes.2020.109206
Kalácska et al. (2020) Acta Materialia 200, 211-222 https://doi.org/10.1016/j.actamat.2020.09.009
Thursday 1st April 2021
Moderator: P. Baral
Jin-Yu ZHANG
清华大学材料学院
(School of Materials Science and Engineering, Tsinghua University Beijing 100084, P.R.CHINA)
A simple method for constructing a reliable initial atomic configuration of a general interface and dislocations
Thursday 18 March 2021
Moderator: P. Carrez
David RICHARD
(Institute for Theoretical Physics, University of Amsterdam)
Comparison of computational methodologies for predicting plastic activity in amorphous materials
To learn more: Richard et al. (2020) Phys. Rev. Materials 4, 113609 https://doi.org/10.1103/PhysRevMaterials.4.113609
Richard et al. (2021) Phys. Rev. Letters 126, 015501 https://doi.org/10.1103/PhysRevLett.126.015501
Thursday 4 March 2021
Moderator: P. Cordier
Khalid HATTAR
(Sandia National Laboratories)
Exploring Materials Response to Extreme Environments via In-situ TEM
Thursday 18 February 2021
Moderator: H. Idrissi
Alexandra M. GORYAEVA
(Groupe de Physique des Matériaux, Université de Rouen, France)
Reinforcing materials modelling by encoding the structures of defects in crystalline solids into distortions cores
To learn more: Goryaeva et al. (2020) Nature Comm. 11: 4691. https://doi.org/10.1038/s41467-020-18282-2
Monday February 1st, 2021
Moderator: P. Carrez
Julien LAM
(CEMES, CNRS, Toulouse, France)
The Φ-LassoLars method to construct Machine-learning interaction potentials
Monday January 18, 2021
Moderator: P. Hirel
Kongtao CHEN
(University of Pennsylvania, USA)
Grain Boundary Mobility Tensor and Topological Phase Transitions
To learn more: Chen et al. (2020) The grain boundary mobility tensor. PNAS 117 (9) 4533-4538 - Chen et al. (2020) Grain-boundary topological phase transitions. PNAS 117 (52) 33077-33083
Thursday January 7, 2021
Moderator: P. Cordier
Yolita EGGELER
(Laboratory for Electron Microscopy, KIT, Germany)
Exploring Magnetic Phenomena on the Nanoscale of Functional Materials Using Analytical In Situ Transmission Electron Microscopy
Thursday December 17 2020
Moderator: H. Idrissi
Hadas STERNLICHT
(Brown University, Providence, Rhode Island, USA)
Disconnections and the Mechanism of Grain Growth
To learn more: links to selected papers here
Thursday December 3 2020
Moderator: P. Cordier
Søren SØRENSEN
(Department of Chemistry and Bioscience, Aalborg University, Denmark)
Topological data analysis as a tool to analyze the structure of amorphous materials
to learn more: Sørensen et al. (2020) Science Advance 6 : eabc2320
Thursday November 19 2020
Moderator: P. Cordier
Dan MORDEHAI
(Faculty of Mechanical Engineering, Technion, Israel)
Studying Plasticity from the Atomic Scale – Transferring Information between Scales
Tuesday November 3, 2020
Moderator: P. Carrez
Gerhard DEHM
(Max-Planck-Institut für Eisenforschung GmbH)
Resolving grain boundary phase transformations in copper by advanced STEM
To learn more: Meiners et al. (2020) Nature 579, 375–378
Thursday October 22, 2020
Moderator: H. Idrissi
Sebastian RITTERBEX
(Geodynamics Research Center, Ehime University, Japan)
Does Earth’s inner core oscillate and translate anomalously ?
To learn more: Ritterbex & Tsuchiya (2020) Scientific Reports10, 6311
Tuesday October 13 2020
Moderator: P. Carrez
Dipta GHOSH
(Louisiana State University, USA)
Water at the grain boundary interface: Insights from first-principles simulations
Monday September 28 2020
Moderator: P. Carrez
Eita TOCHIGI
(Institute of Engineering Innovation, The University of Tokyo, Japan)
TEM investigation of dislocation structures and twinning behavior in oxide crystals
Thursday September 10 2020
Moderator: H. Idrissi
Zongqiang FENG
(Chongqing University, China)
Tomographic crystallography of dislocations in metals
Work with Rui Fu, Guilin Wu, Xiaoxu Huang
Friday August 28 2020
Moderator: P. Cordier