Results 11 to 20 of about 1,835,803 (307)

Core-shell structure and domain engineering in Bi0.5Na0.5TiO3-based ceramics with enhanced dielectric and energy storage performance

open access: yesJournal of Materiomics, 2023
Core–shell structured Bi0.5Na0.5TiO3KTaO3 + x% (in mass) Li2CO3 ceramics were fabricated in this study. Increasing x from 0 to 2 leads to the decrease of sintering temperature from 1 175 °C to 1 020 °C.
Guoliang Xue   +5 more
doaj   +1 more source

Perforation Characteristics of Three-Layer Steel Plates Subjected to Impact with Different Shapes and Velocities of Reactive Fragments

open access: yesApplied Sciences, 2023
In this paper, the AUTODYN/Smoothed Particle Hydrodynamics (SPH) method was used to study the impact of reactive fragments on three-layer equidistant steel plates.
Huanteng Sun, Yunzhu Ma, Qingshan Cai
doaj   +1 more source

High-Throughput Screening of Optimal Process Parameters for PVD TiN Coatings With Best Properties Through a Combination of 3-D Quantitative Phase-Field Simulation and Hierarchical Multi-Objective Optimization Strategy

open access: yesFrontiers in Materials, 2022
Physical vapor deposition (PVD) is one of the most important techniques for coating fabrication. With the traditional trial-and-error approach, it is labor-intensive and challenging to determine the optimal process parameters for PVD coatings with best ...
Rao Dai   +6 more
doaj   +1 more source

Microstructural evolution during annealing of a powder metallurgical TiAl–Nb composite and its effect on mechanical properties

open access: yesJournal of Materials Research and Technology, 2023
Ductile Nb particles have been applied to toughen TiAl-based intermetallic alloys due to the positive effects of the Nb element on their mechanical and processing properties.
Yaofeng Luo   +6 more
doaj   +1 more source

Materials and technologies of powder metallurgy in components of aviation and space engineering

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2020
Examples of the implementation of powder metallurgy methods and their individual elements in the processes of producing materials with special properties and products thereof are considered.
A. Ph. Ilyushchanka   +4 more
doaj   +1 more source

Insight into electrochemical performance of porous FexSiy intermetallic anode for zinc electrowinning

open access: yesMaterials & Design, 2020
Pb pollution, which is provoked by lead-based anodes in large-scale industrial production, has seriously endangered human health and destroyed the ecological environment in the past decades.
Botao Shen   +9 more
doaj   +1 more source

In Situ Formed Tribofilms as Efficient Organic/Inorganic Hybrid Interlayers for Stabilizing Lithium Metal Anodes

open access: yesNano-Micro Letters, 2023
Highlights The robust organic/inorganic hybrid interlayer derived from in situ formed tribofilms were fabricated by using a scalable rolling method. The interlayer facilitates dendrite-free lithium metal anodes by building local de-solvation environments
Shaozhen Huang   +8 more
doaj   +1 more source

Growth of Sr1-xCaxRuO3 thin films by metalorganic aerosol deposition [PDF]

open access: yes, 2009
We report the growth of thin films of Sr1-xCaxRuO3 on SrTiO3 and MgO substrates by metalorganic aerosol deposition. The structure and microstructure is characterized by X-ray diffraction and room-temperature scanning tunnelling microscopy (STM ...
M Schneider   +4 more
core   +2 more sources

Investigation of the effect of consolidation on cement flow behaviour [PDF]

open access: yes, 2020
International audienceOne of the main problems affecting the flow of cement bulk powder is the formation of cohesive arching at the outlet of the hopper, causing blockage of the silo opening and bridge formation.
Belarbi, El-Habib   +3 more
core   +2 more sources

Effect Of The Desorption-Recombination Temperature On The Microstructure And Magnetic Properties Of HDDR Processed Nd-Fe-B Powders

open access: yesArchives of Metallurgy and Materials, 2015
The effect of the desorption-recombination temperature on the microstructure and magnetic properties of hydrogenation-disproportionation-desorption-recombination (HDDR) processed Nd-Fe-B powders was studied. The NdxB6.4Ga0.3Nb0.2Febal (x=12.5-13.5, at.%)
Lee J.-G.   +5 more
doaj   +1 more source

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