• Precipitation behavior in an Al-Cu-Mg-Si alloy during ageing 

      Gazizov, Marat; Marioara, Calin Daniel; Friis, Jesper; Wenner, Sigurd; Holmestad, Randi; Kaibyshev, Rustam (Journal article; Peer reviewed, 2019)
      The precipitation behavior and aging response of an Al-4.9Cu-0.74Mg-0.51Si-0.48Mn-0.1Cr-0.08Ti-0.02Fe (wt. %) alloy was examined in detail after aging at 170 °C with different dwell times up to 96 h. Deformation by ...
    • Review and Alignment of Domain-Level Ontologies for Materials Science 

      de Baas, Anne F; Del Nostro, Pierluigi; Friis, Jesper; Ghedini, Emanuele; Goldbeck, Gerhard; Paponetti, Ilaria Maria; Pozzi, Andrea; Sarkar, Arkopaul; Yang, Lan; Zaccarini, Francesco Antonio; Toti, Daniele (Peer reviewed; Journal article, 2023)
      The growing complexity and interdisciplinary nature of Materials Science research demand efficient data management and exchange through structured knowledge representation. Domain-Level Ontologies (DLOs) for Materials ...
    • The Role of Grain Boundary Precipitates during Intergranular Fracture in 6xxx Series Aluminium Alloys 

      Ringdalen, Inga Gudem; Jensen, Ingvild Julie Thue; Marioara, Calin Daniel; Friis, Jesper (Peer reviewed; Journal article, 2021)
      During ageing, 6xxx aluminium alloys will develop a microstructure characterised by needle-shaped Mg/Si-rich precipitates in the bulk, precipitate-free zones along the grain boundaries and larger Mg/Si-rich precipitates ...
    • Structural modifications and electron beam damage in aluminium alloy precipitate θ'-Al2Cu 

      Wenner, Sigurd; Friis, Jesper; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi (Peer reviewed; Journal article, 2015)
      The –AlCu phase in an Al–4Zn–2Cu–1Mg–0.7Si (wt.%) alloy was investigated by means of scanning transmission electron microscopy. With our specific alloy composition, the phase is often formed with stacking faults on and ...
    • Structure, hydration, and chloride ingress in C-S-H: Insight from DFT calculations 

      Svenum, Ingeborg-Helene; Ringdalen, Inga Gudem; Bleken, Francesca Lønstad; Friis, Jesper; Hoche, Daniel; Swang, Ole (Peer reviewed; Journal article, 2020)
      The structure of Calcium-Silicate-Hydrate (C-S-H) and the effect of variations in its water content have been investigated using density functional theory (DFT) calculations. Trends for calculated densities as a function ...
    • Studying GPI zones in Al-Zn-Mg alloys by 4D-STEM 

      Thronsen, Elisabeth; Frafjord, Jonas; Friis, Jesper; Marioara, Calin Daniel; Wenner, Sigurd; Andersen, Sigmund Jarle; Holmestad, Randi (Peer reviewed; Journal article, 2021)
      A new methodology has been developed to study the fine details of GP zones in age-hardenable aluminium alloys. It is complementary to atomic resolution high-angle annular dark-field scanning transmission electron microscopy ...
    • Toward a Unified Description of Battery Data 

      Clark, Simon; Bleken, Francesca Lønstad; Stier, Simon; Flores, Eibar; Andersen, Casper Welzel; Marcinek, Marek; Szczesna-Chrzan, Anna; Gaberscek, Miran; Palacin, Rosa; Uhrin, Martin; Friis, Jesper (Peer reviewed; Journal article, 2021)
      Battery research initiatives and giga-scale production generate an abundance of diverse data spanning myriad fields of science and engineering. Modern battery development is driven by the confluence of traditional domains ...
    • Toward semantic standard and process ontology for Additive manufacturing 

      Gouttebroze, Sylvain; Friis, Jesper; Hovig, Even Wilberg; Boivie, Klas Magnus (Peer reviewed; Journal article, 2023)
      Advanced modelling of additive manufacturing often requires the combination of models at multiple scales and multi-physics. Therefore, building the modelling workflow describing the process is complicated. The modelling ...
    • A transmission electron microscopy study of precipitate phases that form during operation in a heat exchanger alloy 

      Marioara, Calin Daniel; Friis, Jesper; Hersent, Emmanuel; Oskarsson, Anders (Peer reviewed; Journal article, 2019)
      During manufacturing of heat exchangers, the core material is cladded with a lower-melting point alloy, rolled into thin strips before being formed and finally brazed at an elevated temperature. After a period of natural ...