Results 101 to 110 of about 902,619 (282)

Periodic splay Fréedericksz transitions in a ferroelectric nematic

Nature Communications
Electric field-induced splay of molecular orientation, called the Fréedericksz transition, is a fundamental electro-optic phenomenon in nonpolar nematic liquid crystals. In a ferroelectric nematic NF with a spontaneous electric polarization $${{\bf{P}}}$$
Bijaya Basnet, Sathyanarayana Paladugu, Oleksandr Kurochkin, Oleksandr Buluy, Natalie Aryasova, Vassili G. Nazarenko, Sergij V. Shiyanovskii, Oleg D. Lavrentovich   +7 more
doaj   +1 more source

Theory of plasmonic waves on a chain of metallic nanoparticles in a liquid crystalline host

, 2013
A chain of metallic particles, of sufficiently small diameter and spacing, allows linearly polarized plasmonic waves to propagate along the chain. In this paper, we describes how these waves are altered when the liquid crystal host is a nematic or a ...
Pike, N. A., Stroud, D.
core   +1 more source

Advancing Wildfire‐Retardant Materials: Engineering Strategies for Direct and Indirect Suppression

Advanced Engineering Materials, EarlyView.
Here, the evolution, ecological impact, and performance of current fire‐retardant materials and suppression strategies are reviewed, offering an engineering perspective to address existing challenges and propose pathways for the development of more effective, scalable, and sustainable solutions to meet the demands of a changing climate. Wildfires cause
Changxin Dong, Samya Sen, Athena Kolli, Stewart G. Wilson, Eric Andrew Appel   +4 more
wiley   +1 more source

Criticality of an isotropic-to-smectic transition induced by anisotropic quenched disorder

, 2010
We report combined optical birefringence and neutron scattering measurements on the liquid crystal 12CB nanoconfined in mesoporous silicon layers. This liquid crystal exhibits strong nematic-smectic coupling responsible for a discontinuous isotropic-to ...
Chahine, Gilbert, Guendouz, Mohammed, Huber, Patrick, Kityk, Andriy V., Knorr, Klaus, Lefort, Ronan, Morineau, Denis   +6 more
core   +3 more sources

Residual Stress States in Microstructurally Graded PBF–LB/M Austenitic Steel Components

Advanced Engineering Materials, EarlyView.
This study examines microstructurally graded 316L rectangular tube profiles fabricated via PBF–LB/M using a dual‐laser system. A 1 kW top‐hat and a 400 W Gaussian laser create distinct grain sizes and crystallographic texture. Mechanical properties are linked to microstructural evolution driven by processing conditions.
Nico Möller, Florian Loebich, Thomas Wegener, Julia Richter, Jens Gibmeier, Thomas Niendorf   +5 more
wiley   +1 more source

π-π2max: Bridging molecular characteristics to crystal packing in nitro-containing two-dimensional energetic materials

Defence Technology
Two-dimensional energetic materials (2DEMs), characterized by their exceptional interlayer sliding properties, are recognized as exemplar of low-sensitivity energetic materials.
Xiaokai He, Chao Chen, Zhixiang Zhang, Linyuan Wen, Yiding Ma, Yilin Cao, Yingzhe Liu   +6 more
doaj   +1 more source

Blow up criterion for compressible nematic liquid crystal flows in dimension three

, 2011
In this paper, we consider the short time strong solution to a simplified hydrodynamic flow modeling the compressible, nematic liquid crystal materials in dimension three.
A. Morro, A.V. Zakharov, C.Y. Wang, Changyou Wang, E. Feireisl, F.H. Lin, F.H. Lin, F.H. Lin, F.H. Lin, F.H. Lin, F.H. Lin, F.M. Leslie, G. Ponce, G.Q. Chen, G.Q. Chen, H.J. Choe, Huanyao Wen, J. Bourguignon, J.L. Ericksen, J.T. Beale, M.C. Hong, P.L. Lions, P.L. Lions, R. Hardt, S.J. Ding, Tao Huang, W. Von Wahl, X. Huang, Y. Cho, Y. Sun, Z. Yoshida   +30 more
core   +2 more sources

Laboratory‐Scale Procedure for Evaluating the Flux Efficiency on Melt Cleanliness and Tensile Properties of Recycled Aluminum Alloys

Advanced Engineering Materials, EarlyView.
A laboratory‐scale procedure is developed to evaluate the efficiency of melt‐cleaning and drossing fluxes during aluminium alloy recycling, studying their effects on melt cleanliness and tensile properties of secondary foundry alloys. This work provides a practical tool for foundries and aluminium refiners to assess the efficiency of salt fluxes in ...
Veronica Milani, Giulio Timelli
wiley   +1 more source

Twist, splay, and uniform domains in ferroelectric nematic liquid crystals

Nature Communications
The newly-discovered ferroelectric nematic liquid crystal exhibits a variety of unique defect phenomena. The depolarization field in the material favors spontaneous spatial variations in polarization, manifesting in diverse forms such as bulk twists and ...
Maxim O. Lavrentovich, Priyanka Kumari, Oleg D. Lavrentovich   +2 more
doaj   +1 more source

Electrooptic and Dielectric Studies in Cadmium Sulphide Nanorods/Ferroelectric Liquid Crystal Mixtures

Advances in Condensed Matter Physics, 2012
We present the results based on the electrooptic and dielectric studies in cadmium sulphide (CdS) nanorods/ferroelectric liquid crystal mixtures. Doping of CdS nanorods increases the spontaneous polarization and response time, which due to large dipole ...
Praveen Malik, Ashok Chaudhary, Rohit Mehra, K. K. Raina   +3 more
doaj   +1 more source