Results 101 to 110 of about 756,449 (301)

Large-scale structure and hyperuniformity of amorphous ices

, 2017
We investigate the large-scale structure of amorphous ices and transitions between their different forms by quantifying their large-scale density fluctuations.
Car, Roberto, Giovambattista, Nicolas, Martelli, Fausto, Torquato, Salvatore   +3 more
core   +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

Off-diagonal magnetoimpedance in field-annealed Co-based amorphous ribbons

, 2005
The off-diagonal magnetoimpedance in field-annealed CoFeSiB amorphous ribbons was measured in the low-frequency range using a pick-up coil wound around the sample. The asymmetric two-peak behavior of the field dependence of the off-diagonal impedance was
Buznikov, N. A., Jin, L., Kim, C. G., Kim, C. O., Yoon, S. S.   +4 more
core   +1 more source

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Unveiling the effect of composition on nuclear waste immobilization glasses’ durability by nonparametric machine learning

npj Materials Degradation
Ensuring the long-term chemical durability of glasses is critical for nuclear waste immobilization operations. Durable glasses usually undergo qualification for disposal based on their response to standardized tests such as the product consistency test ...
Yu Song, Xiaonan Lu, Kaixin Wang, Joseph V. Ryan, Morten M. Smedskjaer, John D. Vienna, Mathieu Bauchy   +6 more
doaj   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Uncooled Microbolometers Based on Nitrogen-Doped Hydrogenated Amorphous Silicon-Germanium (a-SiGe:H,N)

Inorganics
An uncooled microbolometer is a thermal sensor consisting of a membrane suspended from the substrate to provide thermal insulation. Typically, the membrane is composed of a stack of three films integrated by a supporting film, an IR sensing film, and an ...
Oscar Velandia, Alfonso Torres, Alfredo Morales, Luis Hernández, Alberto Luna, Karim Monfil, Javier Flores, Gustavo M. Minquiz, Ricardo Jiménez, Mario Moreno   +9 more
doaj   +1 more source

Pressure-induced amorphization and polyamorphism in one-dimensional single crystal TiO2 nanomaterials

, 2012
The structural phase transitions of single crystal TiO2-B nanoribbons were investigated in-situ at high-pressure using the synchrotron X-ray diffraction and the Raman scattering.
Brohan L., Deb S. K., Di Cicco A., Flank A. M., Hearne G. R., Hemley R. J., Itie J. P., Jenniskens P., Li Q. J., Marchand R., McMillan P. F., McMillan P. F., Mishima O., Mishima O., Perottoni C. A., Pischedda V., Shen L. H., Swamy V., Swamy V., Tulk C. A., Wang Y. J., Wang Z. W., Zaziski D.   +22 more
core   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Quantitative Analysis of Amorphous Form in Indomethacin by Near Infrared Spectroscopy Combined with Partial Least Squares Regression Analysis

Molecules
Indomethacin (INDO) is a synthetic non-steroidal antipyretic, analgesic, and anti-inflammatory drug that commonly exists in both amorphous and crystalline states.
Mingdi Liu, Rui Fu, Jichao Liu, Ping Song, Haichao Li, Weibing Dong, Zan Sun   +6 more
doaj   +1 more source