Now showing items 1-20 of 1731

    • First-principles study of tensile and shear strength of Fe-Al and α-AlFeSi intermetallic compound interfaces 

      Khalid, Muhammad Zeeshan; Friis, Jesper; Ninive, Per Harald; Marthinsen, Knut; Strandlie, Are (Peer reviewed; Journal article, 2021)
      First-principles virtual tensile and shear strength calculations have been performed on the Fe2Al5// Fe4Al13 and -AlFeSi// Fe4Al13 interfaces. The Fast Inertial Relaxation Engine (FIRE) algorithm is used for optimizing ...
    • Atomistic simulations of early stage clusters in Al-Mg alloys 

      Kleiven, David; Ødegård, Olve Lyngved; Laasonen, Kari; Akola, Jaakko (Peer reviewed; Journal article, 2019)
      The Cluster Expansion formalism based on Density Functional Theory (DFT) simulation data has been applied for AlMg alloys with high accuracy ( meV/atom). The atomistic simulations are used to model the AlMg phase diagram, ...
    • Grain boundary structures and their correlation with intergranular corrosion in an extruded Al-Mg-Si-Cu alloy 

      Lervik, Adrian; Wenner, Sigurd; Lunder, Otto; Marioara, Calin Daniel; Holmestad, Randi (Peer reviewed; Journal article, 2020)
      A detailed analysis of grain boundaries in a highly textured Al-Mg-Si-Cu alloy is presented in this work. Electron backscatter diffraction demonstrates the presence of three main categories of grain boundaries in addition ...
    • Exchange-only, nuclear spin-free qubits in semiconductor quantum dots 

      Cadellans, Arnau Sala (Doctoral theses at NTNU;2020:255, Doctoral thesis, 2020)
      There are many successful proposals for using electron spins in quantum dots as qubits. However, a semiconductor quantum dot-based qubit that is scalable, reliable and robust enough for actual quantum information applications ...
    • Magneto-dynamic properties of thin films and interfaces 

      Singh, Suraj Kumar (Doctoral theses at NTNU;2020:278, Doctoral thesis, 2020)
      Magnonics is a developing branch in the field of condensed matter physics with the potential to fulfill the future demand for miniaturized, fast, and energy-efficient spintronics devices. This thesis explores both a novel ...
    • Possible odd-frequency Amperean magnon-mediated superconductivity in topological insulator–ferromagnetic insulator bilayer 

      Hugdal, Henning Goa; Sudbø, Asle (Journal article; Peer reviewed, 2020)
      We study the magnon-mediated pairing between fermions on the surface of a topological insulator (TI) coupled to a ferromagnetic insulator with a tilted mean field magnetization. Tilting the magnetization toward the interfacial ...
    • First principle calculations of pressure dependent yielding in solute strengthened aluminium alloys 

      Frafjord, Jonas; Ringdalen, Inga Gudem; Hopperstad, Odd Sture; Holmestad, Randi; Friis, Jesper (Journal article; Peer reviewed, 2020)
      The pressure dependence of the yield stress in solute strengthened aluminium alloys is investigated by first principle calculations. The solute elements studied are magnesium, silicon and copper. A fixed boundary cluster ...
    • Electroconductive scaffolds for tissue engineering applications 

      Sikorski, Pawel (Journal article, 2020)
      Many material systems that can conduct electronic current have been in recent years studied in the context of tissue engineering. It is suggested that materials that can carry electronic current are necessary or beneficial ...
    • On the formation mechanism of Ba0.85Ca0.15Zr0.1Ti0.15O3 thin films by aqueous chemical solution deposition 

      Khomyakova, Evgeniya; Wenner, Sigurd; Bakken, Kristine; Schultheiß, Jan; Grande, Tor; Glaum, Julia; Einarsrud, Mari-Ann (Journal article; Peer reviewed, 2020)
      Here we report on the development of an environmentally friendly, simple and robust aqueous chemical solution route for the fabrication of Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) thin films. Using a stable aqueous precursor solution, ...
    • Proximity effects in superconducting hybrid structures with spin-dependent interactions 

      Amundsen, Morten (Doctoral theses at NTNU;2020:243, Doctoral thesis, 2020)
      When superconductors are contacted by other, non-superconducting materials, the latter may attain some of the properties of the former, and vice versa. This is the origin of a wealth of interesting phenomena. A striking ...
    • The Effect of Elevated Temperatures on Precipitation in Aluminium Alloys – An Advanced Transmission Electron Microscopy Study 

      Sunde, Jonas Kristoffer (Doctoral theses at NTNU, 2020:229, Doctoral thesis, 2020)
      Aluminium (Al) alloys are increasingly found and sought-after in applications that involve exposure to elevated temperatures. Examples are automotive components located in the engine room, heat exchangers, and subsea/offshore ...
    • Microstructural Characterisation of Features Related to Grain Boundary Corrosion Phenomena in Aluminium Alloys 

      Lervik, Adrian (Doctoral theses at NTNU;2020:260, Doctoral thesis, 2020)
      Aluminium (Al) alloys are of great interest as components for the automotive and aerospace industries. These alloys have great mechanical properties and are lighter than their alternatives. Light alloys will effectively ...
    • Toehold length of target ssDNA affects reaction-diffusion behavior in DNA-responsive DNA-co-acrylamide hydrogels 

      Jonasova, Eleonora Parelius; Bjørkøy, Astrid; Stokke, Bjørn Torger (Peer reviewed; Journal article, 2020)
      In the present study, we expand on the understanding of hydrogels with embedded deoxyribonucleic acid (DNA) cross-links, from the overall swelling to characterization of processes that precede the swelling. The hydrogels ...
    • From Building to Bildung Engineering Students’ Motivation Towards Interacting with Society 

      Kjelsberg, Ronny (Journal article, 2020)
      In this study 567 engineering students are asked about their motivation for becoming engineers, and what non-technical topics engineers should know about. The study is conducted in connection with teaching the course ...
    • Spin Transport in Antiferromagnets and Ferromagnets 

      Gulbrandsen, Sverre Aamodt (Doctoral theses at NTNU;2020:242, Doctoral thesis, 2020)
      This doctoral thesis presents and supplements the results of three scientific papers [1,2,3] within the field of theoretical condensed matter physics. The three papers investigate several spin-related phenomena in ...
    • Phonon-mediated superconductivity in doped monolayer materials 

      Thingstad, Even; Kamra, Akashdeep; Wells, Justin; Sudbø, Asle (Peer reviewed; Journal article, 2020)
      Insight into why superconductivity in pristine and doped monolayer graphene seems strongly suppressed has been central for the recent years' various creative approaches to realize superconductivity in graphene and graphene-like ...
    • Improved cyclability of Nickel-rich layered oxides 

      Wagner, Nils Peter; Tolchard, Julian R; Tron, Artur; Pollen, Harald Norrud; Gaertner, Heiko; Vullum, Per Erik (Peer reviewed; Journal article, 2020)
      This study compares the physico- and electro- chemical properties of LiNi0.8Mn0.10Co0.1O2 (NMC811) and LiNi0.83Mn0.06Co0.09Al0.1O2 (NMCA) prepared by an oxalic acid co-precipitation. Deposition of a SiO2 surface coating ...
    • Development of Cerium‐Doped Hydroxyapatite Coatings with Antimicrobial Properties for Biomedical Applications 

      Predoi, Daniela; Iconaru, Simona Liliana; Predoi, Mihai Valentin; Groza, Andreea; Gaiaschi, Sofia; Rokosz, Krzysztof; Raaen, Steinar; Negrila, Catalin Constantin; Prodan, Alina-Mihaela; Costescu, Adrian; Badea, Monica Luminita; Chapon, Patrick (Peer reviewed; Journal article, 2020)
      Antibacterial cerium-doped hydroxyapatite (Ce-HAp) layers have been researched sparingly in recent years. The Ce-HAp powder, Ca10−xCex(PO4)6(OH)2 with xCe = 0.05, was obtained by an adapted chemical co-precipitation method ...
    • Very sharp diffraction peak in nonglass-forming liquid with the formation of distorted tetraclusters 

      Koyama, Chihiro; Tahara, Shuta; Kohara, Shinji; Onodera, Yohei; Småbråten, Didrik Rene; Selbach, Sverre Magnus; Akola, Jaakko; Ishikawa, Takehiko; Masuno, Atsunobu; Mizuno, Akitoshi; Okada, Junpei T.; Watanabe, Yuki; Nakata, Yui; Ohara, Koji; Tamaru, Haruka; Oda, Hirohisa; Obayashi, Ippei; Hiraoka, Yasuyuki; Sakata, Osami (Peer reviewed; Journal article, 2020)
      Understanding the liquid structure provides information that is crucial to uncovering the nature of the glass-liquid transition. We apply an aerodynamic levitation technique and high-energy X-rays to liquid (l)-Er2O3 to ...
    • Stress Corrosion Cracking in an Extruded Cu-Free Al-Zn-Mg Alloy 

      Lervik, Adrian; Walmsley, John Charles; Lodgaard, Lars; Marioara, Calin Daniel; Johnsen, Roy; Lunder, Otto; Holmestad, Randi (Peer reviewed; Journal article, 2020)
      Stress corrosion cracking (SCC) in Cu-free Al-Zn-Mg (7xxx) aluminium alloys limits its use in many applications. In this work, we study in detail the microstructure of a peak and slightly overaged condition in an AA7003 ...