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Materials

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Displaying 401 - 425 of 2363

Analysis of Strain Correction Procedures for Single Fiber Tensile Testing

December 29, 2022
Author(s)
Amy Engelbrecht-Wiggans, Amanda L. Forster
Accurate strain measurement for single fibers is critical for many engineering applications. Typically, the crosshead displacement is used to calculate strain when performing mechanical testing, however there are complicating factors: slack in the specimen

Symmetry-dependent ultrafast manipulation of nanoscale magnetic domains

December 23, 2022
Author(s)
Nanna Hagstrom, Rahul Jangid, F. N. U. Meera, Diego Turenne, Jeffrey Brock, Erik Lamb, Boyan Stoychev, Justine Schlappa, Natalia Gerasimova, Benjamin Van Kuiken, Rafael Gort, Laurent Mercadier, Loic Le Guyader, Andrey Samartsev, Andreas Scherz, Giuseppe Mercurio, Hermann Durr, Alexander Reid, Monika Arora, Hans Nembach, Justin Shaw, Emmanuelle Jal, Eric Fullerton, Mark Keller, Roopali Kukreja, Stefano Bonetti, Thomas J. Silva, Ezio Iacocca
Symmetry is a powerful concept in physics, but its applicability to far-from-equilibrium states is still being understood. Recent attention has focused on how far-from-equilibrium states lead to spontaneous symmetry breaking. Conversely, ultrafast optical

Probing Accelerated Salt-Induced Relaxation Dynamics of Laponite Suspensions Using X-Ray Photon Correlation Spectroscopy Measurements and Molecular Dynamics Simulations

December 22, 2022
Author(s)
Sohaib Mohammed, Meishen Liu, Qingteng Zhang, Suresh Narayanan, Fan Zhang, Greeshma Gadikota
Linking the physics of the relaxation behavior of visco-elastic fluids as they form arrested gel states to the underlying nano-scale structure and energetic interactions is essential for developing predictive controls. In this study, laponite suspensions

The Impact of Carbon Nanotube Length and Diameter on their Global Alignment by Dead-End Filtration

December 22, 2022
Author(s)
Christopher Rust, Pavel Shapturenka, Manuel Spari, Andreas Bacher, Qihao Jin, Han Li, Markus Guttmann, Ming Zheng, Tehseen Adel, Angela R. Hight Walker, Jeffrey Fagan, Benjamin Flavel
Dead-end filtration on polyvinylpyrrolidone-coated polycarbonate track-etched membranes has proven to be an effective method to prepare macroscopically (3.8 cm²) aligned thin films from solution-based single-wall carbon nanotubes (SWCNTs). However, to make

Crystallization Kinetics in an Immiscible Polyolefin Blend

December 12, 2022
Author(s)
Derek Huang, Anthony Kotula, Chad R. Snyder, Kalman Migler
Motivated by the problem of brittle mechanical behavior in recycled blends of high density polyethylene (HDPE) and isotactic polypropylene (iPP), we employ optical microscopy, rheo-Raman, and differential scanning calorimetry (DSC) to measure the

2D honeycomb transformation into dodecagonal quasicrystals driven by electrostatic forces

December 7, 2022
Author(s)
Sebastian Schenk, Oliver Krahn, Eric J. Cockayne, Holger Meyerheim, Marc de Boissieu, Stefan Foerster, Wolf Widdra
Dodecagonal oxide quasicrystals are well established as examples of long range aperiodic order in two dimensions. However, despite investigations by scanning tunneling microscopy (STM), low-energy electron diffraction (LEED), low-energy electron microscopy

Elemental excitations in MoI3 one-dimensional van der Waals nanowires

November 28, 2022
Author(s)
Fariborz Kargar, Zahra Barani, Nicholas Sesing, Thuc Mai, Topojit Debnath, Huairuo Zhang, Yuhang Liu, Yanbing Zhu, Subhajit Ghosh, Adam Biacchi, Felipe H. da Jornada, Ludwig Bartels, Tehseen Adel, Angela R. Hight Walker, Albert Davydov, Tina Salguero, Roger Lake, Alexander Balandin
We report the polarization-dependent Raman spectrum of exfoliated MoI3, a van der Waals material with a "true one-dimensional" crystal structure that can be exfoliated to individual atomic chains. The temperature evolution of several Raman features reveals

Vacancy-Driven Disorder and Elevated Dielectric Response in the Pyrochlore Pb 1.5 Nbd2^O 6.5

November 21, 2022
Author(s)
Uyen Dang, Jake O'Hara, Hayden Evans, Daniel Olds, Juan Chamorro, Daniel Hickox-Young, Geneva Laurita, Robin Macaluso
Lone-pair driven distortions are a hallmark of many technologically-important lead (Pb)-based materials. The role of Pb 2+ in polar perovskites is well understood and easily manipulated for applications in piezo- and ferroelectricity, but the control of

Aluminum Formate, Al(HCOO)3: An Earth-Abundant, Scalable, and Highly Selective Material for CO2 Capture

November 2, 2022
Author(s)
Hayden Evans, Dinesh Mullangi, Zeyu Deng, Yuxiang Wang, Shing B. Peh, Fengxia Wei, John Wang, Craig Brown, Dan Zhao, Pieremanuele Canepa, Anthony K. Cheetham
A combination of gas adsorption and gas breakthrough measurements show that the metal-organic framework, Al(HCOO) 3 (ALF), which can be made inexpensively from commodity chemicals, exhibits excellent CO 2 adsorption capacities and outstanding CO 2/N 2

Prestress in Composite Polymer Gels as a Model for Articular Cartilage

November 2, 2022
Author(s)
Alexandros Chremos, Jack F. Douglas, Peter Basser, Ferenc Horkay
Articular cartilage is a composite gel-like material found in animal and human joints and exhibits a unique load-bearing performance that has been challenging to reproduce in synthetic materials and in molecular dynamics simulations. We investigate a

Visualization of multi-orientational ordering within a single domain of donor non-fullerene acceptor blends

November 1, 2022
Author(s)
Eliot Gann, Christopher McNeill, Urvashi Bothra, Pramiti Hui, Wen Liang Tanc, Hariprasad Venugopal, Chandramouli Subramaniam, Amelia C.Y. Liu, Dinesh Kabra
We have studied the tailored micron-scale phase-separated bulk heterojunction (BHJ) morphology of the well-known polymer (PTB7-Th) and a narrow bandgap acceptor 2,2'-[[4,4,9,9-Tetrakis(4-hexylphenyl)-4,9-dihydro-s-indaceno [1,2-b:5,6-b']dithiophene-2,7

Synthesis, Structure, Te Alloying, and Physical Properties of CuSbS2

October 30, 2022
Author(s)
Dean Hobbis, Kaya Wei, Hsin Wang, Joshua Martin, George S. Nolas
Materials with very low thermal conductivities continue to be of interest for a variety of applications. We synthesized CuSbS2 employing a mechanical alloying technique in order to investigate its physical properties. The trigonal pyramid arrangement of

The Influence of Proteoforms: Assessing the Accuracy of Total VDBP Quantification by Proteolysis and LC-MS/MS

October 24, 2022
Author(s)
Lisa Kilpatrick, Roger Bouillon, Clay Davis, Clark Henderson, Andrew N. Hoofnagle, Steven Pauwels, Dirk Vanderschueren, Etienne Waelkens, Hans Wildiers, James H. Yen, Karen W. Phinney
Objectives: Vitamin D-binding protein (VDBP), a serum transport protein for 25-hydroxyvitamin D [25(OH)D], has three common proteoforms which have co-localized amino acid variations and glycosylation. A monoclonal immunoassay was found to differentially
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