41 citations · 83 across the 14 of their papers we have counts for
14 papers
Recrystallisation phenomena in an ultrafine-grained Al-Mg-Si alloy revealed by correlative in situ EBSD and TEM heating
Moritz Theissing, Sandra Gonzaga, Patrick Willenshofer +5
Ultrafine-grained (UFG) aluminium alloys are promising lightweight structural materials for space applications, where a high grain-boundary density can act as sinks for irradiation…
CuCrZr heat-sink irradiation performance reveals new challenges for thermonuclear fusion reactors
Thomas Barzic, Anna-Carina Seitlinger, Christoph Frühwirth +10
Commercial fusion energy requires materials that survive intense neutron bombardment whilst extracting extreme heat loads for conversion to electricity. The CuCrZr alloy, the leadi…
Direct nanoscale observation of melting and solute redistribution in a hypoeutectic Al-Cu alloy with STEM
Martin Hasenburger, Rostislav Daniel, Phillip Dumitraschkewitz +3
Melting and solidification of eutectic systems are classical topics in physical metallurgy, yet the mechanisms at nanoscale are less investigated, due to experimental limitations i…
Unlocking nanoscale microstructural detail in aluminium alloys through differential phase contrast segmentation in STEM
Matheus A. Tunes, Martin Hasenburger, Rostislav Daniel +5
Differential phase contrast (DPC) imaging in scanning transmission electron microscopy (STEM) maps projected electric fields through the phase sensitivity of segmented low-angle de…
Design Kinetic Parameters for Improved Resilience of Materials under Irradiation
Mohammadhossein Nahavandian, Eda Aydogan, Jesper Byggmästar +3
High entropy alloys (HEAs) have captured much attention in recent years due to their conceivably improved radiation resistance compared to pure metals and traditional alloys. Howev…
Enhancing Irradiation Resistance in Refractory Medium Entropy Alloys with Simplified Chemistry
M. A. Tunes, D. Parkison, B. Sun +12
Refractory High-Entropy Alloys (RHEAs) hold promising potential to be used as structural materials in future nuclear fusion reactors, where W and its alloys are currently leading c…
Transcending the MAX phases concept of nanolaminated early transition metal carbides/nitrides -- the ZIA phases
M. A. Tunes, S. M. Drewry, F. Schmidt +12
A new potential class of nanolaminated and structurally complex materials, herein conceived as the Zigzag IntermetAllic (ZIA) phases, is proposed. A study of the constituent phases…
Fabrication of bulk delta-phase Zirconium Hydride from Zircaloy-4 for use as moderators in microreactors
D. Parkison, M. A. Tunes, T. J. Nizolek +3
The fabrication of bulk delta-phase Zirconium Hydride (-ZrH) using Zircaloy-4 as a precursor is herein reported. Characterization using electron-microscopy methods indicate that…
Perspectives on Novel Refractory Amorphous High-Entropy Alloys in Extreme Environments
Matheus A. Tunes, Hi T. Vo, Jon K. S. Baldwin +3
Two new refractory amorphous high-entropy alloys (RAHEAs) within the W--Ta--Cr--V and W--Ta--Cr--V--Hf systems were herein synthesized using magnetron-sputtering and tested under h…
An innovative materials design protocol for the development of novel refractory high-entropy alloys for extreme environments
O. El Atwani, H. T. Vo, M. Tunes +16
In the quest of new materials that can withstand severe irradiation and mechanical extremes for advanced applications (e.g. fission reactors, fusion devices, space applications, et…
Radiation-resistant aluminium alloy for space missions in the extreme environment of the solar system
Patrick D. Willenshofer, Matheus A. Tunes, Ho T. Vo +5
Future human-based exploration of our solar system requires the invention of materials that can resist harsh environments. Age-hardenable aluminium alloys would be attractive candi…
A New Methodology for Radiation Effects Studies in Solids using the Plasma Focused Ion Beam
M. A. Tunes, M. M. Schneider, C. A. Taylor +1
A new methodology for fundamental studies of radiation effects in solids is herein introduced by using a plasma Focused Ion Beam (PFIB). The classical example of ion-induced amorph…
MEMS-based in situ electron-microscopy investigation of rapid solidification and heat treatment on eutectic Al-Cu
Phillip Dumitraschkewitz, Matheus A. Tunes, Cameron R. Quick +5
The solidification behavior of a eutectic AlCu specimen is investigated via in situ scanning transmission electron microscope (STEM) experiments. Solidification conditions are vari…
A contamination-free electron-transparent metallic sample preparation method for MEMS experiments with in situ S/TEM
Matheus A. Tunes, Cameron Quick, Lukas Stemper +5
Microelectromechanical systems (MEMS) are currently supporting ground-breaking basic research in materials science and metallurgy as they allow in situ experiments on materials at…