Results 81 to 90 of about 73,552 (290)

Composition formulas of Fe-based transition metals-metalloid bulk metallic glasses derived from dual-cluster model of binary eutectics

Scientific Reports, 2017
It is known that bulk metallic glasses follow simple composition formulas [cluster](glue atom)1 or 3 with 24 valence electrons within the framework of the cluster-plus-glue-atom model.
Gul Jabeen Naz, Dandan Dong, Yaoxiang Geng, Yingmin Wang, Chuang Dong   +4 more
doaj   +1 more source

Fast and direct determination of fragility in metallic glasses using chip calorimetry

Heliyon, 2019
We directly determine the thermodynamic fragility index of two metallic glasses (Mg65Cu25Gd10 and Au49Cu26.9Si16.3Ag5.5Pd2.3) from fictive temperature shifts induced by a variation of the quenching rate using fast differential scanning calorimetry (FDSC).
Florian Spieckermann, Innozenz Steffny, Xilei Bian, Sergey Ketov, Mihai Stoica, Jürgen Eckert   +5 more
doaj   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Keijsers, Shklyarevskii and van Kempen Reply

, 1998
Answer to the Comment on ``Point-Contact Study of Fast and Slow Two-Level Fluctuators in Metallic Glasses'' by Jan von Delft et al.Comment: 3 pages, no figures, accepted Phys.
G. Zaránd, H. van Kempen, K. Vladar, K. Vladar, K. Vladar, O. I. Shklyarevskii, R. J. P. Keijsers, R. J. P. Keijsers, R. J. P. Keijsers, V. I. Kozub, V. I. Kozub, V. I. Kozub, V. I. Kozub   +12 more
core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Universality of the Plastic Instability in Strained Amorphous Solids

, 2011
By comparing the response to external strains in metallic glasses and in Lenard-Jones glasses we find a quantitative universality of the fundamental plastic instabilities in the athermal, quasistatic limit.
Dasgupta, Ratul, Karmakar, Smarajit, Procaccia, Itamar   +2 more
core   +1 more source

On‐Demand Activation of Thin Alginate Shell Encapsulated Volatile Liquid for Untethered Pneumatic Soft Actuation

Advanced Engineering Materials, EarlyView.
Phase‐changing liquids enable untethered pneumatic actuation in soft robotics but suffer from volatility and storage challenges. This work reports a simple method to encapsulate Novec 7000 within micron‐thin alginate shells via in situ injection and ionic crosslinking.
Rayan A. M. Basodan, Jack Keddie, Byoungyoul Park, Hyun‐Joong Chung   +3 more
wiley   +1 more source

Review on the Research and Development of Ti-Based Bulk Metallic Glasses

Metals, 2016
Ti-based bulk metallic glasses (BMGs) are very attractive for applications because of their excellent properties such as high specific strength and high corrosion resistance.
Pan Gong, Lei Deng, Junsong Jin, Sibo Wang, Xinyun Wang, Kefu Yao   +5 more
doaj   +1 more source

Tricritical behaviour of Ising spin glasses with charge fluctuations

, 1996
We show that tricritical points displaying unusal behaviour exist in phase diagrams of fermionic Ising spin glasses as the chemical potential or the filling assumes characteristic values.
A. Sengupta, B. Rosenow, D. Huse, D. S. Fisher, F. C. Chou, H. von Loehneysen, I. D. Lawrie, J. E. Green, J. Ye, M. B. Maple, M. Blume, N. Read, P. J. Mottishaw, R. Oppermann, R. Oppermann, S. Sachdev, S. Sachdev   +16 more
core   +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