Results 71 to 80 of about 1,899 (278)

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

Practical Applications of Asymmetrical Flow Field-Flow Fractionation (AF4): A Review [PDF]

, 2015
Characterization of macromolecules and colloids is an area of considerable interest. Asymmetrical flow field-flow fractionation (AF4) has become a well-established method, but many potential users possess limited knowledge of its capabilities, or how it ...
Storm, Matilda Ulmius, Leeman, Mats, Nilsson, Lars   +2 more
core  

Characterisation of colloids using asymmetrical flow field-flow fractionation and online organic carbon detection [PDF]

, 2017
Asymmetrical flow field-flow fractionation (AF4) has been used to characterise the size and organic carbon concentration of colloids in environmental samples, without extensive pre-treatment. The addition of a true online organic carbon detector (OCD) to
T. Meyn, C. Hallé
core   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Development of continuous two-dimensional asymmetrical flow field-flow fractionation for particles:Principle, instrument development and applications [PDF]

, 2016
Continuous two-dimensional field-flow fractionation (2D-FFF) is a field flow fractionation principle for continuous fractionation of macromolecules and particles [1].
Riekkola, Marja-Liisa, Moslova, Karina, Jussila, Matti, Vastamäki, Pertti   +3 more
core  

Determination of Hamaker constants of polymeric nanoparticles in organic solvents by asymmetrical flow field-flow fractionation [PDF]

, 2013
Interaction forces between all objects are either of repulsive or attractive nature. Concerning attractive interactions, the determination of dispersion forces are of special interest since they appear in all colloidal systems and have a crucial ...
Thünemann, Andreas, Noskov, Sergey, Maskos, Michael, Scherer, Christian   +3 more
core   +1 more source

On the Effect of Creep on Local Lattice Orientation in Single‐Crystal Ni‐Based Superalloy Microstructures

Advanced Engineering Materials, EarlyView.
During creep of a single‐crystal Ni‐based superalloy, the overall crystal orientation is observed to remain constant while the microstructure evolves. Despite the lack of macroscopic rotation, small (<1°) rotations are observed on the submicron size scale and are accommodated by counteracting rotations over the scale of several micrometers.
E. J. Payton, E. B. Dursun, G. Eggeler, L. Agudo Jácome   +3 more
wiley   +1 more source

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

Advanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus, Bradlee J. McIntosh, Lili Vajtai, Anna Nyáry, Sándor H. Sipos, Nirmal J. Ghimire, Ferenc Simon, László Forró, Dávid Beke   +8 more
wiley   +1 more source

AF4-to-SAXS: expanded characterization of nanoparticles and proteins at the P12 BioSAXS beamline

Journal of Synchrotron Radiation
Biological small-angle X-ray scattering (SAXS) is a versatile and powerful technique for investigating the structural and biophysical properties of biologically and pharmaceutically relevant macromolecules and nanoparticles. SAXS offers detailed insights
Stefano Da Vela, Kim Bartels, Daniel Franke, Dymtro Soloviov, Tobias Gräwert, Dmitry Molodenskiy, Bastian Kolb, Christoph Wilhelmy, Roland Drexel, Florian Meier, Heinrich Haas, Peter Langguth, Melissa A. Graewert   +12 more
doaj   +1 more source

Accurate Size and Size-Distribution Determination of Polystyrene Latex Nanoparticles in Aqueous Medium Using Dynamic Light Scattering and Asymmetrical Flow Field Flow Fractionation with Multi-Angle Light Scattering

Nanomaterials, 2012
Accurate determination of the intensity-average diameter of polystyrene latex (PS-latex) by dynamic light scattering (DLS) was carried out through extrapolation of both the concentration of PS-latex and the observed scattering angle.
Shinichi Kinugasa, Kayori Takahashi, Ayako Nakamura, Haruhisa Kato   +3 more
doaj   +1 more source