Results 21 to 30 of about 30,934 (302)

Characteristics of a calcite "limestone"-marble from Macedonia, used as flux material [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2003
The phase characteristics of calcite "limestone"-marble from Banjany area village (near Skopje, Macedonia) were examined by means of XRD, SEM microscope in polarizing and reflected lights, chemical, DT/TG-analyses. It was concluded as follows: - calcite (
Hristova E., Jancev S.
doaj   +1 more source

Numerical investigation of affecting parameters on the thermal and dynamic performance of a hot isostatic pressing furnace [PDF]

open access: yesمهندسی مکانیک شریف, 2022
Hot isostatic pressing (HIP) is a manufacturing process used in powder metallurgy science. It can be used to consolidate a powder, enhance the properties of a single crystal, solidify a cast blade in a specified direction and generally, densify a cold ...
S. Shoaee   +3 more
doaj   +1 more source

Polycrystalline MnBi as a transverse thermoelectric material

open access: yesAIP Advances, 2023
To assess the potential of polycrystalline MnBi as a transverse thermoelectric material, we have experimentally investigated its anomalous Nernst effect (ANE) by means of the heat flux method. We prepared MnBi samples by powder metallurgy; this technique
A. Sola   +3 more
doaj   +1 more source

Investigation of Structure-Property-Boiling Enhancement Mechanisms of Copper/Graphene Nanoplatelets Coatings

open access: yesFrontiers in Mechanical Engineering, 2021
In this work, we present an exceptionally high heat transfer coefficient (HTC) and critical heat flux (CHF) achieved by graphene nanoplatelets (GNPs) and copper composite coatings with tunable surface properties.
Aniket M. Rishi   +6 more
doaj   +1 more source

Design and Performance Analysis of Permanent Magnet Claw Pole Machine with Hybrid Cores

open access: yesCES Transactions on Electrical Machines and Systems, 2023
Permanent magnet claw pole machine (PMCPM) is a special kind of transverse flux permanent magnet machine. Compared with other electrical machines, it has the advantages of high torque density and high efficiency for high speed operation. However, because
Chengcheng Liu   +3 more
doaj   +1 more source

Super-hard “Tanghulu”: cubic BP microwire covered with amorphous SiO2 balls

open access: yesHeliyon, 2021
Superhard materials, which are widely used in metallurgy, petroleum drilling, and mechanical processing, have become the key to the development of processing and manufacturing industry.
Yali Liang   +3 more
doaj   +1 more source

Magnetically soft composites based on iron powders for creating components of a two-stator combined electric motor

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2023
An experimental prototype of electric motor on permanent (FeNdB) magnets with switchable magnetic flux with two sectioned stators and a rotor using SMC material based on encapsulated metal powders has been developed. The method of manufacture of magnetic
A. L. Zhaludkevich   +9 more
doaj   +1 more source

Impact of electro-magneto-hydrodynamics in radiative flow of nanofluids between two rotating plates

open access: yesAlexandria Engineering Journal, 2022
Heat transfer improvement using electro-magneto hydrodynamics is a technique that can result in significant heat exchanger reduction as well as “on-demand” heat transfer.
Hassan Waqas   +6 more
doaj   +1 more source

High-temperature tensile and thermal shock characterization of low-temperature rolled tungsten

open access: yesNuclear Materials and Energy, 2023
A developed tungsten (W) grade was prepared by powder metallurgy technology plus multi-step low-temperature rolling. The relative density, thermal conductivity, microstructure, tensile properties of original and high-temperature annealed states, micro ...
Xiaolei Ma   +9 more
doaj   +1 more source

Preparation of Sodalite and Faujasite Clay Composite Membranes and Their Utilization in the Decontamination of Dye Effluents

open access: yesMembranes, 2021
The present work describes the deposition of two zeolite films, sodalite and faujasite, by the hydrothermal method to tune the mesopores of clay support, which are prepared from a widely available clay depot from the central region of Morocco (Midelt ...
Abderrazek El-kordy   +6 more
doaj   +1 more source

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