Felix is at the Denver X-ray Conference 2015 in Westminster, Colorado, USA. He will give an invited talk on “Defect Analysis at the Atomic Scale”.
Author Archives: hofmanngroup
News and Views
Felix’s News and Views entitled “Shedding coherent light on defects” can be found in the August issue of Nature Materials.
Experiments at the APS
Felix is currently visiting the Advanced Photon Source to carry out experiments at beamlines 26-ID-C and 34-ID-E.
Laser transient gratings
Transient grating measurements are an excellent tool for studying the elastic and thermal transport properties of micron-thin material layers. Interference of two short pump laser beams generates a spatially periodic grating pattern on the sample surface. Absorption of the lights causes the formation of a temperature grating. Rapid thermal expansion also launches two counter propagating surfaceContinue reading “Laser transient gratings”
Phonons 2015
In July Felix attended the Phonons 2015 meeting at the University of Nottingham. He gave a talk entitled Helium-Implantation-Induced Changes in Elastic Properties of Tungsten: Surface Acoustic Wave Measurements and Multiscale Modelling. Great to hear about the latest exciting developments in the phonon community!
Visiting Scientist at MIT
In June 2015 Felix spent 10 days as a visiting scientist at MIT. He was hosted by Prof Keith Nelson’s group in the Department of Chemistry. The visit was spent collecting transient grating measurements on ion-implanted nuclear materials with collaborators from the Nelson group. Felix also gave a seminar in the Department of Nuclear Science and EngineeringContinue reading “Visiting Scientist at MIT”
Defects go deep at high temperature
Temperature dependence of helium-implantation-induced lattice swelling in polycrystalline tungsten: X-ray micro-diffraction and Eigenstrain modelling I de Broglie, CE Beck, W Liu, F Hofmann Scripta Materialia 107 (2015) 96-99 Using synchrotron X-ray micro-diffraction and Eigenstrain analysis the distribution of lattice swelling near grain boundaries in helium-implanted polycrystalline tungsten is quantified. Samples heat-treated at up to 1473 KContinue reading “Defects go deep at high temperature”
Image and Object: Data
Felix will give a talk entitled “X-ray diffraction images: from data to information” at the Image and Object: Data workshop in the History Faculty, University of Oxford. Considering the example of diffraction data he will discuss the following questions: How does data become information? Is there value in data once the information within it has beenContinue reading “Image and Object: Data”
TMS 2015, Orlando, Florida
Felix will travel to Florida to give an invited talk at TMS 2015. He will discuss recent work on the adverse effects of damage due to helium implantation in tungsten. Understanding these effects is vital for the successful development of nuclear fusion as a viable energy source.
Experiment at I22
Felix, along with collaborators Mark Thompson and Fabio Bianchi, spent 3 exciting days at beamline I22 at the Diamond Light Source discovering how tendons fail.
