Cyril Cayron
cyril.cayron@epfl.ch +41 21 695 44 56
Birth date: 05.09.1972
Microcity Contact
Phone: 021.695.44.56Mobile: 076.560.50.52
+41 21 695 44 56
EPFL
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SMX-ENS
EPFL STI IMX LMTM
MC A1 248 (Bâtiment MC)
Rue de la Maladière 71b, CP 526
2002 Neuchâtel 2
Web site: Web site: https://lmtm.epfl.ch/
Fields of expertise
Crystallography, Metallurgy, Phase Transformations, Group theory, Electron Microscopy, SEM, EBSD, TEM.
Biography
1992-1995 Engineering School. Ecole des Mines de Nancy.1994-1995 Master's degree in Materials Science (rank = 1st)
1995-1996 Military Service
1996-2000 PhD at EPFL-CIME. Precipitation in 6xxx alloys and composites.
2000-2014 Researcher, Engineer and Group leader on materials for new energies at CEA-Grenoble, France.
2012 Habilitation to supervise researches (HDR)
2014-now Senior Scientist at EPFL-LMTM
Creator of the computer programs GenOVa and ARPGE (in Python).
I currently work on crystallographic models of martensitic transformations and deformation twinning.
Current work
Crystallography of structural phase transformations.Martensitic transformation, deformation twinning.
Please go to https://www.researchgate.net/profile/Cyril_Cayron
Publications
Infoscience publications
Publications
Pinpointing the thermal history of lunar basaltic meteorites in a nutshell
Nature Communications. 2025. DOI : 10.1038/s41467-025-57652-6.Toward Architected Microstructures Using Advanced Laser Beam Shaping in Laser Powder Bed Fusion of Ti-6al-4v
ADVANCED FUNCTIONAL MATERIALS. 2025. DOI : 10.1002/adfm.202420427.The role of interaction work in martensite deformation
Scripta Materialia. 2025. DOI : 10.1016/j.scriptamat.2024.116433.Tailoring mechanical properties and microstructures in laser powder bed fusion of 316 L stainless steel through aluminium alloying and combined ex-situ and in-situ heat treatments
Additive Manufacturing. 2025. DOI : 10.1016/j.addma.2024.104620.Microstructure and texture evolution in laser Shock Peened martensitic NiTi shape memory alloy
Materials and Design. 2025. DOI : 10.1016/j.matdes.2024.113555.Zircon microstructures record high temperature and pressure conditions during impact melt evolution at the West Clearwater Lake impact structure, Canada
Earth and Planetary Science Letters. 2024. DOI : 10.1016/j.epsl.2024.118714.Hard-sphere model of the B2 → B19' phase transformation, and its application to predict the B19' structure in NiTi alloys and the B19 structures in other binary alloys
Acta Materialia. 2024. DOI : 10.1016/j.actamat.2024.119870.Monitoring of laser-induced fast recrystallization in SS-316L through synchrotron X-ray diffraction
Materials & Design. 2024. DOI : 10.1016/j.matdes.2023.112628.EBSD study of variant reorientation, texture, and twin formation in a martensitic NiTi alloy deformed in compression
Acta Materialia. 2023. DOI : 10.1016/j.actamat.2023.119553.In-situ selective laser heat treatment for microstructural control of additively manufactured Ti-6Al-4V
Additive Manufacturing. 2023. DOI : 10.1016/j.addma.2023.103882.Simple shear extrusion versus equal channel angular pressing: A comparative study on the microstructure and mechanical properties of an Mg alloy
Journal Of Magnesium And Alloys. 2023. DOI : 10.1016/j.jma.2023.05.006.Laser powder-bed fusion of a high entropy alloy with outstanding intrinsic mechanical properties
Journal Of Alloys And Compounds. 2023. DOI : 10.1016/j.jallcom.2023.169209.Response of magnesium microcrystals to c-axis compression and contraction loadings at low and high strain rates
Acta Materialia. 2023. DOI : 10.1016/j.actamat.2023.118762.An investigation on reorientation and textural evolution in a martensitic NiTi rolled sheet using EBSD
International Journal Of Plasticity. 2022. DOI : 10.1016/j.ijplas.2022.103468.The concept of axial weak twins
Acta Materialia. 2022. DOI : 10.1016/j.actamat.2022.118128.Effect of chromium content on microstructural evolution of CoNiAlW superalloy
Applied Physics A-Materials Science & Processing. 2022. DOI : 10.1007/s00339-022-05768-7.Thermally controlled growth of photoactive FAPbI(3) films for highly stable perovskite solar cells
Energy & Environmental Science. 2022. DOI : 10.1039/d2ee01196d.Evolution of deformation twinning mechanisms in magnesium from low to high strain rates
Materials & Design. 2022. DOI : 10.1016/j.matdes.2022.110646.Hot rocks: Constraining the thermal conditions of the Mistastin Lake impact melt deposits using zircon grain microstructures
Earth And Planetary Science Letters. 2022. DOI : 10.1016/j.epsl.2022.117523.Persistence of variant selection in red gold alloys
Journal Of Alloys And Compounds. 2022. DOI : 10.1016/j.jallcom.2021.163364.Understanding variant selection and texture in additively manufactured red-gold alloys
Scripta Materialia. 2022. DOI : 10.1016/j.scriptamat.2021.114490.Micro-addition of Fe in highly alloyed Cu-Ti alloys to improve both formability and strength
Materials & Design. 2022. DOI : 10.1016/j.matdes.2021.110340.A new method for lattice reduction using directional and hyperplanar shearing
Acta Crystallographica A-Foundation And Advances. 2022. DOI : 10.1107/S2053273321011037.A fast algorithm to find reduced hyperplane unit cells and solve N-dimensional Bezout's identities
Acta Crystallographica A-Foundation And Advances. 2021. DOI : 10.1107/S2053273321006835.Microstructural evolution and superplastic behavior of a fine-grained Mg-Gd-Y-Ag alloy processed by simple shear extrusion
Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing. 2021. DOI : 10.1016/j.msea.2021.140803.Superplastic behavior of a severely deformed Mg-6Gd-3Y-0.5Ag alloy
Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing. 2021. DOI : 10.1016/j.msea.2020.140616.Phase transformation induced distortions in red gold alloys
Lausanne, EPFL, 2021. DOI : 10.5075/epfl-thesis-8381.Diffraction artefacts from twins and stacking faults, and the mirage of hexagonal, polytypes or other superstructures
Scripta Materialia. 2020. DOI : 10.1016/j.scriptamat.2020.11.014.Solute-dislocation interactions and creep-enhanced Cu precipitation in a novel ferritic-martensitic steel
Acta Materialia. 2020. DOI : 10.1016/j.actamat.2020.05.054.Joining of Oxide Dispersion-Strengthened Steel Using Spark Plasma Sintering
Metals. 2020. DOI : 10.3390/met10081040.The thermally activated distortion with amplification effect and related variant selection in red gold alloys
Acta Materialia. 2020. DOI : 10.1016/j.actamat.2020.07.064.What EBSD and TKD Tell Us about the Crystallography of the Martensitic B2-B19′ Transformation in NiTi Shape Memory Alloys
Crystals. 2020. DOI : 10.3390/cryst10070562.van der Waals Epitaxy of Earth-Abundant Zn3P2 on Graphene for Photovoltaics
Crystal Growth & Design. 2020. DOI : 10.1021/acs.cgd.0c00125.Complements to Mugge and Friedel's Theory of Twinning
Metals. 2020. DOI : 10.3390/met10020231.Evidence of extensive lunar crust formation in impact melt sheets 4,330 Myr ago
Nature Astronomy. 2020. DOI : 10.1038/s41550-020-1092-5.Electron backscatter diffraction study of variant selection during ordering phase transformation in L1(0)-type red gold alloy
Journal Of Applied Crystallography. 2019. DOI : 10.1107/S1600576719011890.The transformation matrices (distortion, orientation, correspondence), their continuous forms and their variants (vol A75, pg 411, 2019)
Acta Crystallographica A-Foundation and Advances. 2019. DOI : 10.1107/S2053273319009276.On the chevron morphology of surface martensite
Acta Materialia. 2019. DOI : 10.1016/j.actamat.2019.08.021.Effect of powder characteristics and oxygen content on modifications to the microstructural topology during hot isostatic pressing of an austenitic steel
Acta Materialia. 2019. DOI : 10.1016/j.actamat.2019.03.038.Shock-produced high-pressure (La, Ce, Th)PO4 polymorph revealed by microstructural phase heritage of monazite
Geology. 2019. DOI : 10.1130/G46008.1.Experimental and theoretical investigation of crystallography and variant selection during massive transformation in Zr alloy
Philosophical Magazine. 2019. DOI : 10.1080/14786435.2019.1574408.Microstructures and Properties of Martensitic Materials
Crystals. 2019. DOI : 10.3390/cryst9030152.Effect of cooling conditions on microstructures and mechanical behaviors of reheated low-carbon weld metals
Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing. 2019. DOI : 10.1016/j.msea.2018.12.035.Variant selection in martensitic steels
Lausanne, EPFL, 2019. DOI : 10.5075/epfl-thesis-9635.Morphological and Crystallographic Characteristics of alpha Structure in a Low-Carbon Iron-Nickel Alloy
Crystals. 2018. DOI : 10.3390/cryst8120468.Variant Selection in Fe-20Ni-1.8C under Bending
Crystals. 2018. DOI : 10.3390/cryst8120474.A one-step mechanism for new twinning modes in magnesium and titanium alloys modelled by the obliquity correction of a (58 degrees, a+2b) prototype stretch twin
Acta Crystallographica A-Foundation And Advances. 2018. DOI : 10.1107/S2053273317015042.Hard-sphere displacive model of extension twinning in magnesium
Materials and Design. 2017. DOI : 10.1016/j.matdes.2017.01.047.{225} habit planes in martensitic steels: from the PTMC to a continuous model
Scientific Reports. 2017. DOI : 10.1038/srep40938.Cubic zirconia in >2370◦C impact melt records Earth’s hottest crust
Earth and Planetary Science Letters. 2017. DOI : 10.1016/j.epsl.2017.08.012.Variant selection in surface martensite
Journal of Applied Crystallography. 2017. DOI : 10.1107/S160057671701398X.Hard-sphere displacive model of deformation twinning in hexagonal close-packed metals. Revisiting the case of the (56, a) contraction twins in magnesium
Acta Crystallographica A. 2017. DOI : 10.1107/S2053273317005459.Evolution of grain boundary network topology in 316L austenitic stainless steel during powder hot isostatic pressing
Acta Materialia. 2017. DOI : 10.1016/j.actamat.2017.04.068.The surprising influence of continuous alternating electric current on recrystallization behaviour of a cold-rolled Aluminium alloy
Materials Characterization. 2017. DOI : 10.1016/j.matchar.2017.04.036.Microstructure tailoring of selenium-core multimaterial optoelectronic fibers
Optical Materials Express. 2017. DOI : 10.1364/OME.7.001388.Creep and stress relaxation of a FeMnSi-based shape memory alloy at low temperatures
Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing. 2016. DOI : 10.1016/j.msea.2016.09.042.Angular distortive matrices of phase transitions in the fcc-bcc-hcp system
Acta Materialia. 2016. DOI : 10.1016/j.actamat.2016.01.075.Comment on 'A new nanoscale metastable iron phase in carbon steels'
arXiv. 2015.Continuous atomic displacements and lattice distortion during fcc–bcc martensitic transformation
Acta Materialia. 2015. DOI : 10.1016/j.actamat.2015.06.010.EBSD imaging of orientation relationships and variant groupings in different martensitic alloys and Widmanstätten iron meteorites
Materials Characterization. 2014. DOI : 10.1016/j.matchar.2014.05.015.Local band bending and grain-to-grain interaction induced strain nonuniformity in polycrystalline CdTe films
Physical Review B. 2014. DOI : 10.1103/PhysRevB.89.035310.Incidence of mechanical alloying contamination on oxides and carbides formation in ODS ferritic steels
Journal of Nuclear Materials. 2013. DOI : 10.1016/j.jnucmat.2013.03.090.Chalcopyrite thin-film solar cells by industry-compatible ink-based process
Solar Energy Materials and Solar Cells. 2013. DOI : 10.1016/j.solmat.2013.03.029.Crystallographic Analysis of Isothermally Transformed Bainite in 0.2C-2.0Mn-1.5Si-0.6Cr Steel Using EBSD
Journal of Materials Science and Technology. 2013. DOI : 10.1016/j.jmst.2013.01.015.Excimer laser crystallization of amorphous silicon on metallic substrate
Applied Physics A: Materials Science and Processing. 2013. DOI : 10.1007/s00339-013-7643-1.Multiscale phase mapping of LiFePO4-based electrodes by transmission electron microscopy and electron forward scattering diffraction
ACS Nano. 2013. DOI : 10.1021/nn4043964.Relationships between mechanical behavior and microstructural evolutions in Fe 9Cr-ODS during the fabrication route of SFR cladding tubes
Journal of Nuclear Materials. 2013. DOI : 10.1016/j.jnucmat.2013.04.052.The effect of processing parameters on the dynamic recrystallisation behaviour of API-X70 pipeline steel
Materials Science and Engineering A. 2013. DOI : 10.1016/j.msea.2013.01.066.One-step model of the face-centred-cubic to body-centred-cubic martensitic transformation
Acta Crystallographica Section A: Foundations of Crystallography. 2013. DOI : 10.1107/S0108767313019016.Metastable precipitation in 6XXX Al alloys as revealed by STEM-ADF at the atomic level
Revue de Metallurgie. Cahiers D'Informations Techniques. 2013. DOI : 10.1051/metal/2012018.Aluminum catalyzed growth of silicon nanowires: Al atom location and the influence of silicon precursor pressure on the morphology
Journal of Crystal Growth. 2012. DOI : 10.1016/j.jcrysgro.2011.12.057.Evidence of anti-coking behavior of La 0.8Sr 0.2Cr 0.98Ru 0.02O 3 as potential anode material for Solid Oxide Fuel Cells directly fed under methane
Journal of Catalysis. 2012. DOI : 10.1016/j.jcat.2012.03.012.CW laser induced crystallization of thin amorphous silicon films deposited by EBE and PECVD
Applied Surface Science. 2012. DOI : 10.1016/j.apsusc.2012.04.023.Hidden defects in silicon nanowires
Nanotechnology. 2012. DOI : 10.1088/0957-4484/23/2/025701.Embedded layer of Ag nanoparticles prepared by a combined PECVD/PVD process producing SiO xC y-Ag nanocomposite thin films
Nanotechnology. 2012. DOI : 10.1088/0957-4484/23/1/015603.Assessment of a new fabrication route for Fe-9Cr-1W ODS cladding tubes
Journal of Nuclear Materials. 2012. DOI : 10.1016/j.jnucmat.2011.12.013.Improved multicrystalline silicon ingot crystal quality through seed growth for high efficiency solar cells
Progress in Photovoltaics: Research and Applications. 2012. DOI : 10.1002/pip.1221.Al catalyzed growth of silicon nanowires and subsequent in situ dry etching of the catalyst for photovoltaic application
Physica Status Solidi (A) Applications and Materials Science. 2011. DOI : 10.1002/pssa.201127072.Crystallographic analysis of martensite in 0.2C-2.0Mn-1.5Si-0.6Cr steel using EBSD
Journal of Materials Science and Technology. 2011. DOI : 10.1016/S1005-0302(11)60165-5.Crystallographic analysis of martensite in 0.2C-2.0Mn-1.5Si-0.6Cr steel by EBSD
Metallurgia Italiana. 2011.Quantification of multiple twinning in face centred cubic materials
Acta Materialia. 2011. DOI : 10.1016/j.actamat.2010.09.029.Microcracking of high zirconia refractories after t→m phase transition during cooling: An EBSD study
Journal of the European Ceramic Society. 2011. DOI : 10.1016/j.jeurceramsoc.2011.02.033.Confirmation of the domino-cascade model by lifepo4/fepo 4 precession electron diffraction
Chemistry of Materials. 2011. DOI : 10.1021/cm201783z.Reply to "comments on 'The mechanisms of the fcc-bcc martensitic transformation revealed by pole figures'"
Scripta Materialia. 2011. DOI : 10.1016/j.scriptamat.2010.09.004.New theory of fcc-bcc martensitic transformations in steels
Revue de Metallurgie. Cahiers D'Informations Techniques. 2011. DOI : 10.1051/metal/2011005.Combined effect of stress and strain on crystallographic orientation of bainite
Ironmaking and Steelmaking. 2011. DOI : 10.1179/1743281211Y.0000000012.The mechanisms of the fcc-bcc martensitic transformation revealed by pole figures
Acta Materialia. 2010. DOI : 10.1016/j.actamat.2009.10.046.Inhomogeneous nucleation and growth of palladium and alloyed cobalt during self-aligned capping of advanced copper interconnects
Thin Solid Films. 2010. DOI : 10.1016/j.tsf.2010.01.025.Identification of new phases in annealed Fe-18CrWTi ODS powders
Journal of Nuclear Materials. 2010. DOI : 10.1016/j.jnucmat.2010.01.023.Reconstruction of the cubic and tetragonal oarent grains from electron backscatter diffraction maps of monoclinic zirconia
Journal of the American Ceramic Society. 2010. DOI : 10.1111/j.1551-2916.2010.03894.x.Crystallographic reconstruction methods to study phase transformations by EBSD
Microscopy and Microanalysis. 2009. DOI : 10.1017/S1431927609092617.Odd electron diffraction patterns in silicon nanowires and silicon thin films explained by microtwins and nanotwins
Journal of Applied Crystallography. 2009. DOI : 10.1107/S0021889808042131.Growth parameters and shape specific synthesis of silicon nanowires by the VLS method
Journal of Nanoparticle Research. 2008. DOI : 10.1007/s11051-007-9350-3.Importance of the α → β transformation in the variant selection mechanisms of thermomechanically processed titanium alloys
Scripta Materialia. 2008. DOI : 10.1016/j.scriptamat.2008.05.013.Growth of one-dimensional Si/SiGe heterostructures by thermal CVD
Nanotechnology. 2008. DOI : 10.1088/0957-4484/19/33/335603.Examination of Be//Cu joints in hipped Be tiles by using Ion Beam Analysis methods
Fusion Engineering and Design. 2007. DOI : 10.1016/j.fusengdes.2007.03.031.ARPGE: A computer program to automatically reconstruct the parent grains from electron backscatter diffraction data
Journal of Applied Crystallography. 2007. DOI : 10.1107/S0021889807048777.Multiple twinning in cubic crystals: Geometric/algebraic study and its application for the identification of the Σ3n grain boundaries
Acta Crystallographica Section A: Foundations of Crystallography. 2007. DOI : 10.1107/S0108767306044291.Catalytic steam reforming of methane over La0.8Sr0.2CrO3 based Ru catalysts
Catalysis Today. 2007. DOI : 10.1016/j.cattod.2007.06.071.GenOVa: A computer program to generate orientational variants
Journal of Applied Crystallography. 2007. DOI : 10.1107/S0021889807048741.Alloying effects on microstructure and mechanical properties of high volume fraction SiC-particle reinforced Al-MMCs made by squeeze casting infiltration
Composites Science and Technology. 2007. DOI : 10.1016/j.compscitech.2006.04.005.Groupoid of orientational variants
Acta Crystallographica Section A: Foundations of Crystallography. 2006. DOI : 10.1107/S010876730503686X.Multilayered and nanolayered hard nitride thin films deposited by cathodic arc evaporation. Part 1: Deposition, morphology and microstructure
Surface and Coatings Technology. 2006. DOI : 10.1016/j.surfcoat.2005.11.102.Reconstruction of parent grains from EBSD data
Materials Characterization. 2006. DOI : 10.1016/j.matchar.2006.03.008.Present development status of EUROFER and ODS-EUROFER for application in blanket concepts
Fusion Engineering and Design. 2005. DOI : 10.1016/j.fusengdes.2005.06.186.Microstructural evolution of Y2O3 and MgAl 2O4 ODS EUROFER steels during their elaboration by mechanical milling and hot isostatic pressing
Journal of Nuclear Materials. 2004. DOI : 10.1016/j.jnucmat.2004.06.010.Damage mechanisms at a microscopic scale of PM Ti-6Al-4V at 20 K
Journal of Materials Science and Technology. 2004.Matrix chemistry optimisation of Al/Altex composites preserving both fibres and matrix alloy integrity
Materials Science and Technology. 2002. DOI : 10.1179/026708302225002074.TEM study of interfacial reactions and precipitation mechanisms in Al2O3 short fiber or high volume fraction SiC particle reinforced Al-4Cu-1Mg-0.5Ag squeeze-cast composites
EMPA Activities. 2001.TEM study of interfacial reactions and precipitation mechanisms in Al2O3 short fibers or SiC particles reinforced Al-4Cu-1Mg-0.5Ag squeeze-cast composites
Lausanne, EPFL, 2000. DOI : 10.5075/epfl-thesis-2246.Transmission electron microscopy study of the β′ phase (Al-Mg-Si alloys) and QC phase (Al-Cu-Mg-Si alloys): ordering mechanism and crystallographic structure
Acta mater.. 2000. DOI : 10.1016/S1359-6454(00)00057-4.Microstructure and mechanical properties of a high volume fraction SiC particle reinforced AlCu4MgAg squeeze casting
Materials Science and Engineering A. 1999. DOI : 10.1016/S0921-5093(99)00163-X.About the epitaxial growth of Mg-subgrains on Al2MgC2 interfacial carbides in a squeeze cast Mg-4Al/T300 metal matrix composite
Journal of Materials Science Letters. 1999. DOI : 10.1023/A:1006669514604.Effect of SiO2 binder on the precipitation state of an AlCu4Mg1Ag/Saffil composite
Journal of Materials Science. 1999. DOI : 10.1023/A:1004502819390.Structural phase transition in Al-Cu-Mg-Si alloys by transmission electron microscopy study on an Al-4wt% Cu-1 wt% alloy reinforced by SiC particles
Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties. 1999. DOI : 10.1080/014186199251364.Teaching & PhD
Teaching
Materials Science and Engineering