Results 101 to 110 of about 423,030 (300)

Electronic properties of graphene grain boundaries

New Journal of Physics, 2014
Grain boundaries and defect lines in graphene are intensively studied for their novel electronic and magnetic properties. However, there is not a complete comprehension of the appearance of localized states along these defects.
A Ayuela, W Jaskólski, H Santos, Leonor Chico   +3 more
doaj   +1 more source

Unraveling Bulk and Grain Boundary Electrical Properties in La0.8Sr0.2Mn1-yO3 Thin Films

, 2019
Grain boundaries in Sr-doped LaMnO3 thin films have been shown to strongly influence the electronic and oxygen mass transport properties, being able to profoundly modify the nature of the material.
Burriel, Monica, Chiabrera, Francesco, Garbayo, Inigo, Morata, Alex, Nunez, Marc, Pla, Dolors, Rogalev, Andrei, Tarancon, Albert, Wilhelm, Fabrice   +8 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Electron relaxation times and resistivity in metallic nanowires due to tilted grain boundary planes

, 2015
We calculate the resistivity contribution of tilted grain boundaries with varying parameters in sub-10nm diameter metallic nanowires. The results have been obtained with the Boltzmann transport equation and Fermi's golden rule, retrieving correct state ...
Magnus, Wim, Moors, Kristof, Sorée, Bart, Tokei, Zsolt   +3 more
core   +1 more source

Phenomenological and Physically Based Modeling of Flow Stress and Strengthening Mechanism of Inconel 718

Advanced Engineering Materials, EarlyView.
Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein, Oliver Schenk, Christoph Broeckmann   +2 more
wiley   +1 more source

Micromechanically Based Constitutive Relations for Polycrystalline Solids [PDF]

, 1983
A basic method to estimate the overall mechanical response of solids which contain periodically distributed defects is presented. The method estimates the shape and growth pattern of voids periodically distributed over the grain boundaries in a viscous ...
Iwakuma, T., Nemat-Nasser, S.
core   +1 more source

Self-organized current transport through low angle grain boundaries in YBa$_2$Cu$_3$O$_{7-\delta}$ thin films, studied magnetometrically

, 2003
The critical current density flowing across low angle grain boundaries in YBa$_2$Cu$_3$O$_{7-\delta}$ thin films has been studied magnetometrically. Films (200 nm thickness) were deposited on SrTiO$_3$ bicrystal substrates containing a single [001] tilt ...
A. Goyal, A. Goyal, A. Gurevich, A. Palau, A.A. Polyanskii, C. Cantoni, D. Dimos, D. K. Christen, D. Larbalestier, D. T. Verebelyi, D.T. Verebelyi, D.T. Verebelyi, D.V. Shantsev, E.H. Brandt, E.H. Brandt, E.M. Gyorgy, H. Claus, H. Darhmaoui, H. Hilgenkamp, H. J. Kim, J. Jung, J. R. Thompson, J.E. Evetts, J.H. Durrell, K.C. Chung, M. Charalambous, M. Däumling, M. Däumling, P. Berghuis, R. Feenstra, R.P. Reade, X.D. Wu, X.Y. Cai, Y. Iijima   +33 more
core   +1 more source

Composition‐Tuned Enhancement of the Anomalous Nernst Effect in FeCo–Pt Thin Films on Rigid and Flexible Substrates

Advanced Engineering Materials, EarlyView.
Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi, Hiroyuki Awano, Kenji Tanabe   +2 more
wiley   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

Advanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann, Tom Weber, Jana Hubálková, Florian Kerber, Dinesh Kumar Gunasekar, Hans Jelitto, Christos G. Aneziris   +6 more
wiley   +1 more source

Tailoring the grain boundary structure and chemistry of the dendrite-free garnet solid electrolyte Li6.1Ga0.3La3Zr2O12

NPG Asia Materials
Garnet-type Li6.1Ga0.3La3Zr2O12 (LGLZO) exhibits high ionic conductivity and extremely low electronic conductivity. The electrochemical properties strongly depend on the characteristics of the grain boundaries and pores in the oxide–ceramic electrolyte ...
Rae-Hyun Lee, Chea-Yun Kang, Jong-Kyu Lee, Bong-Soo Jin, Kyong-Nam Kim, Hyun-Soo Kim, Jung-Rag Yoon, Seung-Hwan Lee   +7 more
doaj   +1 more source