Results 31 to 40 of about 562,965 (299)

Epitaxial growth of CH3NH3PbI3 on rubrene single crystal

open access: yesAPL Materials, 2020
CH3NH3PbI3 perovskite films were grown epitaxially on rubrene single crystals using the laser deposition method for the supply of the source materials (PbI2 and CH3NH3I). An atomically smooth surface with step-and-terrace structures was observed. Several
Tetsuhiko Miyadera   +4 more
doaj   +1 more source

Effects of controlling grain growth mode on microstructures and properties of Cu foil

open access: yesJournal of Materials Research and Technology, 2023
By means of direct current electrodeposition, Cu foil with columnar grain growth and equiaxed grain growth with different average grain sizes were prepared.
Junqing Han   +5 more
doaj   +1 more source

Crystal Orientation Dependence of the Portevin–Le Chatelier Effect in Instrumented Indentation: A Case Study in Twinning-Induced Plasticity Steels

open access: yesMetals, 2022
Instrumented indentation can be effectively used to investigate the Portevin–Le Chatelier (PLC) effect at small scales. It has been shown that the PLC effect in single crystals may depend on the crystal orientation, yet the underlying mechanism is ...
Xiuxing Peng   +3 more
doaj   +1 more source

Crystal characteristics of fibrous calcite veins based on Electron Back Scattered Diffraction (EBSD)

open access: yesShiyou shiyan dizhi, 2022
Calcite veins are widely developed in organic-rich shale, and their petrological characteristics and genetic mechanism are the focus of research. The Electron Back Scatter Diffraction (EBSD) can characterize the micro-structure and orientation of mineral
Lanquan ZHAO   +8 more
doaj   +1 more source

Crystal Orientation-Ordered ZnS Nanowire Bundles [PDF]

open access: yesJournal of the American Chemical Society, 2004
We report a novel approach for growing aligned and orientation-ordered ZnS nanowires. Our method relies on a buffer layer of CdSe grown on a Si(111) substrate, on which ZnS nanowires are grown. The growth process of the nanowire bundles is presented.
Daniel F, Moore   +2 more
openaire   +2 more sources

Realization of a four-electrode liquid crystal device with full in-plane director rotation [PDF]

open access: yes, 2007
A liquid crystal device with micrometer-scale hexagonal electrodes has been fabricated and characterized. By using weak anchoring at the liquid crystal interfaces, the orientation of the director is completely governed by the applied electric fields. The
Beeckman, Jeroen   +6 more
core   +1 more source

Analysis on the anisotropic electromechanical properties of lead magnoniobate titanate single crystal for ring type ultrasonic motors

open access: yesAIP Advances, 2016
This work discussed the optimized cut of single crystal lead magnoniobate titanate (PMNT) for use of ring type travelling wave ultrasonic motors (USMs), according to anisotropic analysis on electromechanical properties. The selection criterion of crystal
Xiang Shi   +6 more
doaj   +1 more source

Current situation of research on test methods for elastic modulus and Poisson’s ratio of single crystal superalloys

open access: yesJournal of Aeronautical Materials, 2019
In view of the anisotropic characteristics of elastic constants of single crystal superalloys and other materials, this paper summarizes two main existing testing methods for measuring elastic moduli and Poisson’s ratio of single crystal superalloys ...
ZHAO Pengtao, YU Huichen, HE Yuhuai
doaj   +1 more source

Pressure-induced amorphization, crystal-crystal transformations and the memory glass effect in interacting particles in two dimensions [PDF]

open access: yes, 2005
We study a model of interacting particles in two dimensions to address the relation between crystal-crystal transformations and pressure-induced amorphization.
A. G. Lyapin   +10 more
core   +1 more source

Controlling crystal orientation of Ni-based single crystal superalloy by inclined seeding method

open access: yesCailiao gongcheng
An inclined seeding method for Ni-based single crystal superalloy with a specific orientation is presented. The evolution of solidification microstructure and its mechanism are studied during the preparation of single crystals by this method through ...
YANG Shuai   +6 more
doaj   +1 more source

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