Results 91 to 100 of about 175,341 (310)

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

New methods for the computer simulation of macromolecular liquid crystals [PDF]

, 2006
Molecular simulation of macromolecular liquid crystal (LC) systems has so far been limited by a number of factors: the large size of the molecules themselves and the fact that mesophase formation takes place on length and timescales that are not ...
Hughes, Zak Elliot
core  

Nuclear magnetic resonance studies of translational diffusion in thermotropic ionic liquid crystals

, 2020
The NMR methodologies employed for investigating translational diffusion in anisotropic fluids and the results of their applications to ionic liquid crystals are reviewed.
Dvinskikh, Sergey, V,
core   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Safe and ergonomic welding masks by fast liquid crystals

, 2008
Recent developments in welding technology, in particular the high intensity pulsed welding arc, have sharpened the requirements on speed and adjustable attenuation for safe and ergonomic operations. With this advent the conventional welding helmets based
Dupont, L., Rudquist, Per, Jägemalm, Pontus,, J\ue4gemalm, Pontus, Gautier, P.,, Lagerwall, Sven, Caillaud, B.,, Lagerwall, Sven,, Rudquist, Per,, Caillaud, B., de Bougrenet de la Tocnaye, J.-L.,, Lagerwall, Sven T., Gautier, P., de Bougrenet de la Tocnaye, J.-L., Dupont, L.,, Jägemalm, Pontus   +15 more
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

The use of liquid crystal adaptive optics devices in astronomy [PDF]

, 1991
Images obtained from large astronomical telescopes are distorted and blurred by the effects of the atmosphere. In order to compensate for this, an adaptive optics system can be incorporated downstream from the telescope focus.
Love, G.D, Love, Gordon D.
core  

Fifty Years of Chemists’ Activity in Studies on Liquid Crystal Materials in Poland [PDF]

Military Technology and Science
The activities of seven Polish chemical teams in the synthesis of liquid crystals (LCs) are described: Military University ofTechnology (MUT), University of Siedlce (UwS), Warsaw University of Life Sciences (SGGW), University of Warsaw (UW), Universityof
Roman Dąbrowski
doaj   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Engineering the Uniform Lying Helical Structure in Chiral Nematic Liquid Crystals: From Morphology Transition to Dimension Control

, 2021
This article varies the surface anchoring strength and achieves a uniform lying helical structure with long-range order as thermodynamically stable state without any external support in Chiral nematic liquid crystals (CLCs)
Jia, Zhixuan, Sid Hashemi, Tejal Pawale, Xiao Li, Guillermo Guerrero-García, Guerrero-García, Guillermo I., Hashemi, Sid, Li, Xiao, Pawale, Tejal, José Martínez-González, Martínez-González, José A., Zhixuan Jia   +11 more
core   +1 more source