Joint Workshop on Nucleation
On Monday 1 April 2019, the 4TU.Research Centre High-Tech Materials (4TU.HTM) and the Materials Innovation Institute (M2i) Joint Workshop on Nucleation was held in Utrecht (De Witte Vosch). Here one can find some pictures.
Introduction by prof.dr.ir. Jilt Sietsma, scientific director of 4TU.HTM
Full programme (Pdf file)
Nucleation
Nucleation is among the most fascinating processes in materials science, whereas it is crucial for the production and behaviour of all materials. Taking place at the smallest length and time scales, experimental observation is challenging. Theoretical frameworks have been proposed through recent decades, but predictive power is limited for many aspects of nucleation.
Aim
This workshop brought together scientists and industrial partners with interest and expertise on nucleation throughout the different types of materials and processes together for an exchange of ideas and observations, looking for the crucial characteristics of nucleation.
Keynote speaker
Prof. A. Lindsay Greer
Title: Nucleation of Solidification as an Athermal Process
Abstract
Textbook treatments of nucleation normally consider it to be a stochastic process: through a series of bimolecular reactions, critical nuclei eventually arise. For both homogeneous and heterogeneous nucleation, the kinetics is commonly considered in terms of the rate of generation of critical nuclei on holding at a fixed temperature. In the practical processing of materials, heterogeneous nucleation is much more likely, and ... [continue reading, Pdf file].
Prof. Greer's (short bio, Pdf file) research interests are: metallic glasses and crystal nucleation, grain refinement in casting, and chalcogenide thin films for phase-change data storage.
Programme
Prof.dr.ir. Andre ten Elshof
Inorganic Materials Science Group, University of Twente
Nucleation of BaTiO3 ternary oxide nanoparticles at room temperature
Prof.dr.ir. Gerrit Peters
Theoretical and Applied Rheology. Polymer Technology, Mechanical Engineering, Eindhoven University of Technology
Flow induced nucleation in polymers
Dr. Joost Duvigneau
Materials Science and Technology of Polymers Group, University of Twente
Foam cell nucleation
Dr.ir. Erik Offerman
Materials Science and Engineering, Delft University of Technology
Preferential Nucleation during Polymorphic Transformations in Steel
Dr.ir. Niels van Dijk
Fundamental Aspects of Materials and Energy, Delft University of Technology
Experimental X-ray studies on nucleation phenomena in solids
Simone Dussi PhD
Physical Chemistry and Soft Matter, Wageningen UR
Nucleation of nothing: how disordered materials break
Hanglong Wu MSc
Materials and Interface Chemistry, Eindhoven University of Technology
Using Liquid Phase Electron Microscopy to study Nucleation
Hanglong Wu presented research that was published in a Nature Chemistry paper recently:
Liquid–liquid phase separation during amphiphilic self-assembly
By Alessandro Ianiro, Hanglong Wu, Mark M. J. van Rijt, M. Paula Vena, Arthur D. A. Keizer, A. Catarina C. Esteves, Remco Tuinier, Heiner Friedrich, Nico A. J. M. Sommerdijk & Joseph P. Patterson. Nature Chemistry 11, pages 320–328 (2019).
Image: CryoTEM observations of CaCO3 thin film formation process with 10 mM CaCl2. From the paper: Microscopic structure of the polymer induced liquid precursor for calcium carbonate. Y. Xu, K.C.H. Tijssen, P.H.H. Bomans, A. Akiva, H. Friedrich, A.P.M. Kentgens, N.A.J.M. Sommerdijk.
Nature Communications 9 (2018) 2582.
Hanglong Wu and prof. Lindsay Greer.
This image is from the work by Xiaoqin Ou: Molecular dynamics simulations of martensitic transformation in iron. Dissertation TU Delft, 2017.