Results 11 to 20 of about 7,295 (224)

INVESTIGATION OF PECULIAR FEATURES PERTAINING TO FORMATION OF BORIDE COATINGS ON CARBONITRATED LOW-CARBON STEEL

open access: yesНаука и техника, 2012
The paper contains description about obtaining two-phase boride coatings on preliminary carbonitrated steel 20. The influence of a preliminary carbonitration on phase – and structure formation and properties of the boride coatings has been investigated ...
V. F. Protasevich, G. V. Stasevich
doaj   +1 more source

Redetermination of the crystal structures of rare-earth trirhodium diboride RERh3B2 (RE = Pr, Nd and Sm) from single-crystal X-ray data

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2022
The crystal structures of the rare-earth (RE) trirhodium diborides praseodymium trirhodium diboride, PrRh3B2, neodymium trirhodium diboride, NdRh3B2, and samarium trirhodium diboride, SmRh3B2, were refined on the basis of single-crystal X-ray diffraction
Makoto Tokuda   +3 more
doaj   +1 more source

Deposition of metal boride (magnesium boride, zirconium boride) thin films and surface characterization of calcium boride.

open access: yes, 2005
Deposition of metal boride (magnesium boride, zirconium boride) thin films and surface characterization of calcium ...
M. Chandana. Meegoda (7982585)
core   +4 more sources

Modeling of the phase-structural state in a hybrid multicomponent alloy with a high boron content

open access: yesФізика і хімія твердого тіла, 2022
The present work is focused on analyzing the thermodynamically equilibrium path of structure formation in a multi-component Fe-W-Mo-Cr-Ti-Mn-Si alloy of tribotechnical purpose, containing 0.72 wt. % C and 2.75 wt. % B is analyzed.
Yu.G. Chabak   +7 more
doaj   +1 more source

A Study of the Refractory Borides [PDF]

open access: yesJournal of the American Ceramic Society, 1951
The phases of the binary systems of boron with Ce, Ti, Zr, Nb, Ta, Mo, W, Th, and U were determined by X‐ray examination of samples prepared by heating various mixtures of boron and the respective metal to elevated temperatures in an atmosphere of argon.
Brewer, Leo   +3 more
openaire   +2 more sources

High-Entropy Boride-carbide Ceramics by Sequential Boro/carbothermal Synthesis [PDF]

open access: yes, 2022
A dual-phase high-entropy boride (HEB)/carbide (HEC) ceramic with a fine grain size was synthesized by a sequential boro/carbothermal process. In the first step, an Hf-Nb-Ta-Ti-Zr-containing carbide was synthesized by a carbothermal reduction of oxides ...
Feng, Lun   +9 more
core   +1 more source

Tailoring Electronic Structure of NbB<sub>2</sub> Nanorods Through Selenium Incorporation for Synergistically Enhanced Hydrogen Evolution and Triboelectric Energy Harvesting. [PDF]

open access: yesAdv Sci (Weinh)
Selenium incorporation modulates the electronic structure of niobium diboride (Se‐NbB2) nanorods, enhancing the active site density and resulting in superior hydrogen evolution performance for sustainable energy applications. ABSTRACT The sluggish hydrogen evolution reaction (HER) kinetics of non‐noble‐metal catalysts remain a major challenge for ...
Burse SR   +10 more
europepmc   +2 more sources

Comparison of Boriding Heat Treatment and Induction Boriding Method

open access: yesInternational Scientific and Vocational Studies Journal, 2023
Induction boriding is a metal processing technique that applies a surface accumulation process using a high-frequency electromagnetic field on metal parts. The adoption of this method in industrial applications is anticipated due to its advantages such as high efficiency, precision, and low energy consumption. Induction boriding relies on the principle
Ulaş İPEKOĞLU, Uğur ÇAVDAR
openaire   +2 more sources

Boride-derived oxygen-evolution catalysts

open access: yes, 2021
Metal borides/borates are promising candidates to become high-performance alkaline oxygen evolution reaction catalysts. This study reports an in-situ phase composition modulation approach to fabricate boride/borate-based ...
Yan, Yu,   +45 more
core   +2 more sources

Effect of Boron Content and Cooling Rate on the Microstructure and Boride Formation of β-Solidifying γ-TiAl TNM Alloy

open access: yesMetals, 2020
Boron is a unique and popular grain refiner element in cast titanium aluminide (TiAl) alloys, as it helps to improve mechanical properties if properly alloyed.
Daniel Bernal   +3 more
doaj   +1 more source

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