Results 91 to 100 of about 1,124,464 (249)

Electron and light microscopy studies on the domain structures of Zn 3B7O13Cl, Zn3B7O 13Br and Zn3B7O13I ferroic boracites

open access: yes, 2002
The domain structures of Zn3B7O13Cl, Zn3B7O13Br and Zn3B 7O13I boracite single crystals were studied by means of polarized light in conjunction with electron microscopy. Single crystals of the three compositions were grown by chemical transport reactions
Czank, M.   +9 more
core   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

open access: yesAdvanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Synthesis and Thermotropic Properties of Some New Schiff Bases, N-[4-(4-n-Alkanoyloxybenzoyloxy)-2-Hydroxybenzylidene]-4-Cyano-, 4-Hydroxy-, 4-Thio- and 4-Nitroanilines

open access: yesE-Journal of Chemistry, 2012
A series of elongated Schiff base esters containing three aromatic rings with hexadecanoyl chain as one of the terminal group and various R substituents (R = CN, OH, SH, and NO2) at the other end of molecule were prepared, and their structures were ...
Sie-Tiong Ha   +2 more
doaj   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

open access: yesAdvanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri   +11 more
wiley   +1 more source

Effects of CuCl𝟐 on the Lyotropic Liquid Crystalline Behavior in Nonaqueous and Aqueous Medium

open access: yesAdvances in Condensed Matter Physics, 2011
Effects of varying doping concentrations (𝑥) of CuCl𝟐 on the aggregation behaviour of cationic surfactant in nonaqueous and aqueous medium have been investigated.
Ravi K. Shukla, K. K. Raina
doaj   +1 more source

Synthesis and thermotropic behavior of side chain polysiloxane bearing triphenylene moiety

open access: yeseXPRESS Polymer Letters, 2015
Side chain discotic polysiloxane with 2,3,6,7-tetrakis(hexyloxy)-10-methoxytriphenylene-11-undecanoate moieties is synthesized by hydrosilylation reaction. The phase behavior and thermooptical properties of the polysiloxane and the side chain precursor 2,
T. Makowski   +5 more
doaj   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge   +4 more
wiley   +1 more source

Picrosirius enhanced polarizing microscopy of TMJ-OA.

open access: yes, 2019
Changes in the organization and orientation of the superficial layer extracellular matrix associated with the progression of TMJ-OA. Reconstructions of a mouse cranium and mandible defining the mesiodistal axis, the mediolateral axis, and orientation of ...
David A. Reed (6397355)   +4 more
core   +1 more source

The characterization of clay minerals in the Kashafrud Formation in a gas field in northeast Iran

open access: yesScientific Reports
This study focuses on the identification of type, abundance, and distribution patterns of the clay minerals within the Kashafrud Formation, a Middle Jurassic sedimentary rock sequence in the Khangiran gas field, Kopet-Dagh Basin, northeast Iran.
Pooya Naghizadeh Ardebili   +2 more
doaj   +1 more source

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