Results 91 to 100 of about 489,676 (298)

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Chirality and Biaxiality in Cholesteric Liquid Crystals

, 2010
We investigate the statistical mechanics of chirality and biaxiality in liquid crystals through a variety of theoretical approaches, including Monte Carlo simulations, lattice mean-field theory, and Landau theory.
Dhakal, Subas, Selinger, Jonathan V.
core   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

Equilibrium configurations of nematic liquid crystals on a torus

, 2014
The topology and the geometry of a surface play a fundamental role in determining the equilibrium configurations of thin films of liquid crystals. We propose here a theoretical analysis of a recently introduced surface Frank energy, in the case of two ...
Segatti, Antonio, Snarski, Michael, Veneroni, Marco   +2 more
core   +1 more source

Stiffening Liquid Crystal Elastomers with Liquid Crystal Inclusions

Advanced Materials
Abstract Liquid crystal elastomers (LCEs) are promising building blocks for soft robots, given their large, programmable, reversible, and stimuli‐responsive shape change. Enhancing LCEs’ stiffness and toughness has been a longstanding desire previously explored by reinforcing them with fillers, crystalline microdomains, and ...
Sahad Vasanji, Matthew Gene Scarfo, Arwa Alyami, Tizazu H. Mekonnen, Parsin Hajireza, Mohand O. Saed, Antal Jákli, Hamed Shahsavan   +7 more
openaire   +2 more sources

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

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

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

Liquid Crystals Align Liquid Crystals

Liquid Crystals Align Liquid Crystals
identifier:oai:t2r2.star.titech.ac.jp ...
  +3 more sources

Design rules for the self-assembly of a protein crystal

, 2011
Theories of protein crystallization based on spheres that form close-packed crystals predict optimal assembly within a `slot' of second virial coefficients and enhanced assembly near the metastable liquid-vapor critical point.
Asherie, Babu, Berman, Caspar, Chung, Costa, Doye, Fejer, Fejer, Fortini, Galkin, Galkin, Gast, George, Gibaud, Gorti, Hagan, Hedges, Hu, Kern, Kulkarni, Liu, Liu, Liu, McManus, Muschol, Norville, Pagan, Pan, Panagiotopoulos, Rapaport, Romano, Romano, Rosenbaum, Rosenbaum, Rosenbaum, Sleytr, Sleytr, Sleytr, Soga, Stephen Whitelam, Talanquer, ten Wolde, Thomas K. Haxton, van Workum, Vekilov, Vekilov, Whitelam, Whitelam, Wilber, Wilson, Zhang   +51 more
core   +1 more source