Results 151 to 160 of about 18,973,580 (359)

Tuning of bandgap for warm white light emissions in indium-doped cesium metal halide perovskites by solvothermal method

open access: yesResults in Optics
Cesium-based perovskites, particularly Cs3Bi2Br9, doped with indium, have emerged as promising materials for energy-efficient lighting, notably in white light-emitting diodes (WLEDs).
Sasi Bhushan Bhimavarapu   +5 more
doaj   +1 more source

Significance of Crystal Morphology Controlling in Semiconductor-Based Photocatalysis: A Case Study on BiVO4 Photocatalyst

open access: yes, 2017
Precise control of the morphology and crystalline structure of semiconductor-based photocatalyst is crucial for improving the efficiency of solar energy conversion system.
Zhao, Yue   +7 more
core   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

open access: yesAdvanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti   +4 more
wiley   +1 more source

Green fabrication of tinospora cordifolia-derived MgO nanoparticles: Potential for diabatic control and oxidant protection

open access: yesNext Materials
Pure and encapsulated magnesium oxide (MgO) nanoparticles were synthesized using a hydrothermal method with Tinospora Cordifolia (TC) leaf extract. XRD analysis revealed a face-centered cubic structure for both types of nanoparticles, with an average ...
B.V. Vamsi Krishna   +8 more
doaj   +1 more source

Polarized micro-Raman scattering of CaNb2O6 single crystal fibers obtained by laser heated pedestal growth

open access: yes, 2010
Optically transparent single crystal fibers of calcium niobate (CaNb2O6) were investigated by polarized micro-Raman spectroscopy. The fibers were obtained by the laser heated pedestal growth technique, in the form of rods with about 0.4 mm diameter and ...
Moreira, Roberto Luiz   +12 more
core   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

open access: yesAdvanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

New Strategy for Black Phosphorus Crystal Growth through Ternary Clathrate

open access: yes, 2017
We are reporting a new synthetic strategy to grow large-sized black phosphorus (Black-P) crystals through a ternary clathrate Sn24P22-xI8, under lower synthetic temperature and pressure.
Li, S.   +20 more
core   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt   +5 more
wiley   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

Growth of BaFe12O19 thin films formed by reactive diffusion

open access: yes, 2003
Thin films of BaFe12O19 have been grown on (00 l) oriented α-Fe2O3 single crystal substrates. The initial stages of the reaction between BaFe2O4 thin films and hematite single crystals have been investigated using AFM and SEM.
Gremenok, V.,   +5 more
core   +1 more source

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