Results 1 to 10 of about 2,148,706 (181)

Surface science studies of metal hexaborides

open access: yesScience and Technology of Advanced Materials, 2012
Over 30 years of surface science research on metal hexaborides are reviewed. Of this class of compounds, lanthanum hexaboride has been the subject of the majority of the studies because of its outstanding properties as a thermionic emitter.
Michael Trenary
doaj   +3 more sources

Capabilities for Complex Forensic Study of Objects of Phaleristics

open access: yesТеория и практика судебной экспертизы, 2022
The article addresses the methods used by traditional forensic examinations to study objects of phaleristics (orders and medals). The author justifies the necessity of a complex study of objects of phaleristics to ensure the completeness and validity of ...
G. G. Bocharov
doaj   +1 more source

The Role of Parent Phase Topology in Double Young–Kurdjumow–Sachs Variant Selection during Phase Transformation in Low-Carbon Steels

open access: yesMetals, 2022
The present paper investigates the role of parent phase topology on a crystallographic variant selection rule. This rule assumes that product phase nuclei appear at certain grain boundaries in the parent structure, such that a specific crystallographic ...
Leo A. I. Kestens   +2 more
doaj   +1 more source

A polymer electrolyte design enables ultralow-work-function electrode for high-performance optoelectronics

open access: yesNature Communications, 2022
Ambient-stable solution-processed conductive materials with a low work function are essential to facilitate electron injection. Here, the authors design and synthesise polymer electrolyte with work function down to 2.2 eV for applications in high ...
Bo Tong   +12 more
doaj   +1 more source

Enhanced Permeability of Fe-Based Amorphous Powder Cores Realized through Selective Incorporation of Carbonyl Iron Powders at Inter-Particle Voids

open access: yesMetals, 2021
In this study, we demonstrate a hybrid multimodal soft magnetic composite (SMC) comprising gas-atomized spherical amorphous powder (AP) and carbonyl-iron powder (CIP), and present its enhanced electromagnetic properties.
Hea-Ran Kim   +6 more
doaj   +1 more source

Phase formation capability and compositional design of β-phase multiple rare-earth principal component disilicates

open access: yesNature Communications, 2023
Developing high-entropy environmental barrier coatings is challenged by the intricacy to form stable multicomponent materials. Here the authors report the phases of high-entropy β-RE2Si2O7 could be precisely designed by monitoring the entropy descriptor ...
Yixiu Luo   +6 more
doaj   +1 more source

Analysis of radial-shear rolling process parameters of aluminum alloys based on FEM modeling [PDF]

open access: yesMATEC Web of Conferences, 2020
This article presents the features of temperature change at different deformation-velocity parameters of radial-shear rolling process. Based on modeling the maps of temperature and strain rates distribution and zone of intensive heating are obtained.
Gamin Yury   +2 more
doaj   +1 more source

An ultrasensitive molybdenum-based double-heterojunction phototransistor

open access: yesNature Communications, 2021
Here, the authors exploit a photo-induced barrier-lowering mechanism in MoS2/ α-MoO3-x heterojunctions to realize two-dimensional phototransistors with enhanced performance and fast response at low bias voltage.
Shun Feng   +18 more
doaj   +1 more source

Effect of Heat Treatment Temperature on Microstructure and Mechanical Properties of Co-Cr-W Alloy

open access: yesJournal of Aeronautical Materials, 2018
Co-Cr-W alloy was prepared by powder metallurgy technology. The effect of heat treatment temperature on the microstructure and mechanical properties of the prepared alloy was investigated by SEM and EPMA, etc.
CUI Yu   +7 more
doaj   +1 more source

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