Results 11 to 20 of about 13,314 (263)

Enhanced Thermoelectric Performance of Te-Doped Bi2Se3−xTex Bulks by Self-Propagating High-Temperature Synthesis

open access: yesCrystals, 2017
Polycrystalline Bi2Se3−xTex (x = 0~1.5) samples were prepared by self-propagating high-temperature synthesis (SHS) combined with spark plasma sintering (SPS) and their thermoelectric properties were investigated.
Rui Liu   +7 more
doaj   +1 more source

Simultaneously improving piezoelectric properties and temperature stability of Na0.5K0.5NbO3 (KNN)-based ceramics sintered in reducing atmosphere

open access: yesJournal of Advanced Ceramics, 2021
It is a very difficult work to sinter K0.5Na0.5NbO3 (KNN)-based materials with good reduction resistance in strong reducing atmosphere. 0.945K0.48Na0.52Nb0.96Ta0.04O3−0.055BaZrO3 + 0.03ZrO2 + y mol%MnO (KNNT−0.055BZ + 0.03Zr + yMn) ceramics sintered in ...
Zhenyong Cen   +6 more
doaj   +1 more source

Determination of polarization states in (K,Na)NbO3 lead-free piezoelectric crystal

open access: yesJournal of Advanced Ceramics, 2020
Polarization switching in lead-free (K0.40Na0.60)NbO3 (KNN) single crystals was studied by switching spectroscopy piezoresponse force microscopy (SS-PFM).
Mao-Hua Zhang   +9 more
doaj   +1 more source

Gas Permeation Property of Silicon Carbide Membranes Synthesized by Counter-Diffusion Chemical Vapor Deposition

open access: yesMembranes, 2020
An amorphous silicon carbide (SiC) membrane was synthesized by counter-diffusion chemical vapor deposition (CDCVD) using silacyclobutane (SCB) at 788 K.
Takayuki Nagano   +2 more
doaj   +1 more source

Enhanced Thermoelectric Properties of Cu3SbSe3-Based Composites with Inclusion Phases

open access: yesEnergies, 2016
Cu3SbSe3-based composites have been prepared by self-propagating high-temperature synthesis (SHS) combined with spark plasma sintering (SPS) technology. Phase composition and microstructure analysis indicate that the obtained samples are mainly composed ...
Rui Liu   +4 more
doaj   +1 more source

Crystalline boron nitride nanosheets by sonication-assisted hydrothermal exfoliation

open access: yesJournal of Advanced Ceramics, 2019
A simple method to prepare two-dimensional hexagonal boron nitride (h-BN) scalably is essential for practical applications. Despite intense research in this area, high-yield production of two-dimensional h-BN with large size and high crystallinity is ...
Zhaobo Tian   +6 more
doaj   +1 more source

Homogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide-based precursor powder

open access: yesScientific Reports, 2019
The high density nucleation of α-Al2O3 nanocrystallites was observed by rapid heating of the aluminum formate hydroxide-based precursor powder at 1200 °C for 50 s.
Michiyuki Yoshida   +6 more
doaj   +1 more source

Erratum to: Nanowires-assembled WO3 nanomesh for fast detection of ppb-level NO2 at low temperature

open access: yesJournal of Advanced Ceramics, 2020
Figure 7 in the original version of this article was unfortunately wrong on page ...
Di Liu   +4 more
doaj   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice   +2 more
wiley   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

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