Results 31 to 40 of about 115,773 (314)

The effect of lanthanum addition on the catalytic activity of γ-alumina supported bimetallic Co–Mo carbides for dry methane reforming [PDF]

open access: yes, 2014
The effect of lanthanum addition to γ-alumina supported bimetallic carbides has been studied for the reaction of dry methane reforming using four different lanthanum loading levels of 1, 5, 10 and 15 wt% of lanthanum.
Liam J. France   +19 more
core   +1 more source

Influence of WC Particle Morphology on the Microstructure and Performance of Laser-Cladded Ni-Based WC Composite Coatings on 0Cr13Ni5Mo Steel

open access: yesLubricants
Ni-based WC composite coatings are widely used to protect hydraulic components, yet the role of WC particle morphology in binder-phase strengthening remains unclear.
Jiajun Li   +6 more
doaj   +1 more source

Effect of Tempering Time on Carbide Evolution and Mechanical Properties of a Nb-V-Ti Micro-Alloyed Steel

open access: yesMetals, 2023
The evolution of the microstructure, the precipitation behavior, and the mechanical performances of Nb-V-Ti micro-alloyed steel prepared under different tempering time were studied using transmission electron microscopy (TEM), X-ray diffraction (XRD ...
Qian Zhao, Zhixia Qiao, Ji Dong
doaj   +1 more source

Improvement of piezoresistance properties of silicon carbide ceramics through co-doping of aluminum nitride and nitrogen

open access: yes, 2008
The piezoresistance coefficient was measured on co-doped silicon carbide ceramics. Evaluation samples of alpha-silicon carbide ceramics were first fabricated by glass capsule HIP method using powder mixture of silicon carbide and aluminum nitride with ...
Kishimoto, Akira   +2 more
core   +1 more source

A co-condensation model for in-flight synthesis of metal-carbide nanoparticles in thermal plasma jet [PDF]

open access: yes, 2008
We present a theoretical analysis of the formation, growth, and transport of two-component nanoparticles in thermal plasma jet. The approach of the aerosol science and the idea of multicomponent co-condensation are employed for the analysis.
Mohanty, P., Vorobev, A., Zikanov, O.
core   +1 more source

A Potentially Repairable Composite Coating for Significantly Enhancing Wear and Corrosion Resistance of Magnesium Alloy

open access: yesLubricants
The AZ31 magnesium alloy is an attractive lightweight metallic material, but its low corrosion resistance and wear resistance significantly limit its widespread application in fields such as aerospace, the automotive industry, and mechanical engineering.
Yueyu Huang   +6 more
doaj   +1 more source

Supported Molybdenum Carbide and Nitride Catalysts for Carbon Dioxide Hydrogenation

open access: yesFrontiers in Chemistry, 2020
Catalysts based on molybdenum carbide or nitride nanoparticles (2–5 nm) supported on titania were prepared by wet impregnation followed by a thermal treatment under alkane (methane or ethane)/hydrogen or nitrogen/hydrogen mixture, respectively.
Marwa Abou Hamdan   +6 more
doaj   +1 more source

A quantitative assessment of nanometric machinability of major polytypes of single crystal silicon carbide

open access: yes, 2012
The influence of polymorphism on nanometric machinability of single crystal silicon carbide (SiC) has been investigated through molecular dynamics (MD) simulation. The simulation results are compared with silicon as a reference material.
Reuben, Robert L   +4 more
core   +1 more source

XAFS spectrum of Palladium Carbide

open access: yes
This dataset consists of X-ray absorption fine structure (XAFS) spectra at Pd K-edge of Palladium Carbide measured at PF, and is a part of XAFS database (MDR XAFS DB, https://doi.org/10.48505/nims.1447) as a collection of ...
Kiyotaka Asakura
core   +4 more sources

INFLUENCE OF THE CAST IRON’S CHEMICAL COMPOSITION ON THE INTERPHASE DISTRIBUTION OF MN

open access: yesNauka ta progres transportu, 2016
Purpose. This paper focuses on obtaining the dependencies of the manganese content in the metallic base (Mno) and its interphase distribution coefficient (KPMn) on the cast iron’s chemical composition in the system Fe–C–Cr – Ni –Mn. Methodology. The cast
V. V. Netrebko, I. P. Volchok
doaj   +1 more source

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