Results 1 to 10 of about 350,584 (339)

Sintering of nanocrystalline materials: Sintering parameters

open access: yesHeliyon, 2023
Nanostructured materials (NsM) are typical materials with structural length scales of one, two, or three dimensions in the range of 1-100 nm. In the development of NsM, the microstructure of a material, which is an integral factor in determining the intrinsic performance of a material, is susceptible to changes that may hinder the desired nano-state ...
Bukola Joseph Babalola   +2 more
openaire   +3 more sources

Direct Ink Writing Technology (3D Printing) of Graphene-Based Ceramic Nanocomposites: A Review

open access: yesNanomaterials, 2020
In the present work, the state of the art of the most common additive manufacturing (AM) technologies used for the manufacturing of complex shape structures of graphene-based ceramic nanocomposites, ceramic and graphene-based parts is explained.
Nestor Washington Solís Pinargote   +4 more
doaj   +1 more source

Adsorption Ability of Graphene Aerogel and Reduced Graphene Aerogel toward 2,4-D Herbicide and Salicylic Acid

open access: yesGels, 2023
Within this work, new aerogels based on graphene oxide are proposed to adsorb salicylic acid (SA) and herbicide 2,4-Dichlorophenoxyacetic acid (2,4-D) from aqueous media.
Alexandra Yu. Kurmysheva   +11 more
doaj   +1 more source

Tribochemical Interaction of Multicomponent Aluminum Alloys During Sliding Friction with Steel

open access: yesLubricants, 2020
In this work, aluminum multicomponent alloys were studied after friction with steel in a mixed lubrication regime. The resulting secondary structures on the friction surface were investigated by scanning electron microscopy (SEM), energy dispersive ...
Pavel Podrabinnik   +4 more
doaj   +1 more source

Research on the Quality Improvement and Consumption Reduction of Iron Ore Agglomeration Based on Optimization

open access: yesMetals, 2023
In order to increase agglomeration production and improve its quality while reducing energy consumption, a new intelligent blending method has been established at Ansteel to optimize its sinter blends.
Mingshun Zhou   +9 more
doaj   +1 more source

Effect of Milling Conditions on the Microstructural Design in Aluminum Based Alloy Fabricated by SPS

open access: yesMetals, 2019
In this work, aluminum-based alloys were mechanically alloyed by various doping elements followed by spark plasma sintering. Three different mixing methods were studied. First, all elemental powders were mixed for 24 h. In the second and the third method,
Anton Smirnov   +6 more
doaj   +1 more source

Effects of Borax and Grinding Alkalinity on the Reduction–Magnetic Separation of Beach Placer

open access: yesMetals, 2023
The effect of borax on the reduction characteristics of Indonesia beach placers was investigated. The effect of grinding alkalinity on the magnetic separation of the reduced sample was also studied in this paper.
Bing Hu   +4 more
doaj   +1 more source

Relationship of Secondary Structures and Wear Resistance of Antifriction Aluminum Alloys for Journal Bearings from the Point of View of Self-Organization During Friction

open access: yesEntropy, 2019
The paper investigates the relationship between the tribological properties/compositions of new aluminum antifriction alloys and compositions of the secondary structures formed on their friction surfaces.
Iosif Gershman   +5 more
doaj   +1 more source

The Effect of Elements of Secondary Structures on the Wear Resistance of Steel in Friction against Experimental Aluminum Alloys for Monometallic Journal Bearings

open access: yesLubricants, 2019
This article describes the elemental composition of secondary structures formed on the steel contact surface during wear test against experimental Al alloys. Wear tests were carried out according to the rotating steel roller-fixed shoe of an antifriction
Ekaterina Kuznetsova   +4 more
doaj   +1 more source

Prediction model of sintering bed temperature based on lognormal distribution function: construction and application

open access: yesJournal of Materials Research and Technology, 2023
The monitoring of sintering bed temperature is crucial for controlling physical and chemical reactions during the sintering process and achieving low carbonization trends.
Chengyi Ding   +6 more
doaj   +1 more source

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