Hassel, A. W.: Detection of Elementary Events in the Depassivation of Nitinol under Mechanical Influence. Go Okamoto Centennial Meeting, Sapporo, Japan (2005)
Hassel, A. W.: Self organised nanostructures from directionally solidified eutectics. Seminar at the National Institute for Materials Science, Tsukuba, Japan (2005)
Bello Rodriguez, B.; Milenkovic, S.; Hassel, A. W.; Schneider, A.: Formation of self-organised nanostructures from directionally solidified eutectic alloys. 12th International Symposium on Metastable and nano Materials (ISMANAM), Paris, France (2005)
Asteman, H.; Lill, K.; Hassel, A. W.; Spiegel, M.: Local Measurements of the Semi conducting Properties of alpha-Fe2O3 and Cr2O3 Films by Impedance Measurement using the Scanning Droplet Cell Technique. 9th International Symposium on the Passivity of Metals and Semiconductors, Paris, France (2005)
Bello Rodriguez, B.; Hassel, A. W.; Schneider, A.: Deposition of Noble Metals on Nanopores for the Formation of Nanodisc Electrodes. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Hassel, A. W.; Milenkovic, S.; Schneider, A.: Preparation of One-Dimensionally Structured Electrode Materials by Directional Solidification. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Lill, K. A.; Hassel, A. W.; Stratmann, M.: On the Electrochemical Behaviour of Single Grains of FeCrAl Ferritic Steels. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Smith, A.; Stratmann, M.; Hassel, A. W.: Transient Measurements of Single Particle Impacts on Disk Shaped Microelectrodes for the Investigation of Tribocorrosion. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Hassel, A. W.; Diesing, D.: Modifikation der Fehlstellenkonzentration in Metall-Isolator-Metall-Kontakten und deren Einfluß auf das elektronische Tunneln. Bunsentagung 2005, Frankfurt, Germany (2005)
Mingers, A. M.; Hassel, A. W.; Stratmann, M.; van der Heyden, M.: A Combined Analytical and Electrochemical Method to Evaluate the Stability of Thermal Spray Coatings. 81. AGEF Seminar „Tribocorrosion“, Düsseldorf, Germany (2005)
Smith, A.; Hassel, A. W.: Detection of repassivation transients from single particle impingement on disc shaped microelectrodes. 81. AGEF Seminar „Tribocorrosion“, Düsseldorf, Germany (2005)
Hassel, A. W.: Elektrochemie mit und an Nanoelektrodenarrays. 79. AGEF-Symposium, 25 Jahre Elektrochemie in Düsseldorf, Heinrich-Heine-Universität, Düsseldorf, Germany (2004)
Lill, K. A.; Stratmann, M.; Frommeyer, G.; Hassel, A. W.: On the corrosion resistance of a new class of FeCrAl light weight ferritic steels. 55th Meeting of the International Society of Electrochemistry, Thessaloniki, Greece (2004)
The aim of the Additive micromanufacturing (AMMicro) project is to fabricate advanced multimaterial/multiphase MEMS devices with superior impact-resistance and self-damage sensing mechanisms.
We have studied a nanocrystalline AlCrCuFeNiZn high-entropy alloy synthesized by ball milling followed by hot compaction at 600°C for 15 min at 650 MPa. X-ray diffraction reveals that the mechanically alloyed powder consists of a solid-solution body-centered cubic (bcc) matrix containing 12 vol.% face-centered cubic (fcc) phase. After hot compaction, it consists of 60 vol.% bcc and 40 vol.% fcc. Composition analysis by atom probe tomography shows that the material is not a homogeneous fcc–bcc solid solution
Magnetic properties of magnetocaloric materials is of utmost importance for their functional applications. In this project, we study the magnetic properties of different materials with the final goal to discover new magnetocaloric materials more suited for practical applications.
Laser Powder Bed Fusion (LPBF) is the most commonly used Additive Manufacturing processes. One of its biggest advantages it offers is to exploit its inherent specific process characteristics, namely the decoupling the solidification rate from the parts´volume, for novel materials with superior physical and mechanical properties. One prominet…
In this project we pursue recent developments in the field of austenitic steels with up to 18% reduced mass density. The alloys are based on the Fe-Mn-Al-C system.
Local lattice distortion is one of the core effects in complex concentrated alloys (CCAs). It has been expected that the strength CCAs can be improved by inducing larger local lattice distortions. In collaboration with experimentalists, we demonstrated that VCoNi has larger local lattice distortions and indeed has much better strength than the…
This project is a joint project of the De Magnete group and the Atom Probe Tomography group, and was initiated by MPIE’s participation in the CRC TR 270 HOMMAGE. We also benefit from additional collaborations with the “Machine-learning based data extraction from APT” project and the Defect Chemistry and Spectroscopy group.
Statistical significance in materials science is a challenge that has been trying to overcome by miniaturization as in micropillar compression. However, this process is still limited to 4-5 tests per parameter variance, i.e. Size, orientation, grain size, composition, etc. as the process of fabricating pillars and testing has to be done one by one.…