Results 41 to 50 of about 117,153 (241)

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

Self-Organization of Micro- and Nanosystems in the Form of Patterns

Crystals
In this work, the peculiarities of self-organization of patterned micro- and nanosystems under near-equilibrium condensation conditions were consistently considered.
Vyacheslav Perekrestov, Anna Kornyushchenko, Yuliia Kosminska, Maksym Kubakh, Gerhard Wilde   +4 more
doaj   +1 more source

An engineered monomer binding-protein for α-synuclein efficiently inhibits the proliferation of amyloid fibrils

eLife, 2019
Removing or preventing the formation of [Formula: see text]-synuclein aggregates is a plausible strategy against Parkinson’s disease. To this end, we have engineered the [Formula: see text]-wrapin AS69 to bind monomeric [Formula: see text]-synuclein with
Emil Dandanell Agerschou, Patrick Flagmeier, Theodora Saridaki, Céline Galvagnion, Daniel Komnig, Laetitia Heid, Vibha Prasad, Hamed Shaykhalishahi, Dieter Willbold, Christopher M Dobson, Aaron Voigt, Bjoern Falkenburger, Wolfgang Hoyer, Alexander K Buell   +13 more
doaj   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

A 3D tomographic EBSD analysis of a CVD diamond thin film

Science and Technology of Advanced Materials, 2008
We have studied the nucleation and growth processes in a chemical vapor deposition (CVD) diamond film using a tomographic electron backscattering diffraction method (3D EBSD).
Tao Liu, Dierk Raabe and Stefan Zaefferer
doaj  

Modulating Nucleation by Kosmotropes and Chaotropes: Testing the Waters

Crystals, 2017
Water is a fundamental solvent sustaining life, key to the conformations and equilibria associated with solute species. Emerging studies on nucleation and crystallization phenomena reveal that the dynamics of hydration associated with mineral precursors ...
Ashit Rao, Denis Gebauer, Helmut Cölfen
doaj   +1 more source

The genetic landscape for amyloid beta fibril nucleation accurately discriminates familial Alzheimer’s disease mutations

eLife, 2021
Plaques of the amyloid beta (Aß) peptide are a pathological hallmark of Alzheimer’s disease (AD), the most common form of dementia. Mutations in Aß also cause familial forms of AD (fAD).
Mireia Seuma, Andre J Faure, Marta Badia, Ben Lehner, Benedetta Bolognesi   +4 more
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Reversed Crystal Growth

Crystals, 2018
In the last decade, a reversed growth route has been found in many crystal growth processes. In these systems, a single crystal does not develop from a single nucleus.
Wuzong Zhou
doaj   +1 more source