Results 31 to 40 of about 2,828,055 (204)

Effect of Heat Treatment on the Structural-Phase State and Properties of a Multilayer Co-Cr-Al-Y Coating

open access: yesCrystals, 2022
The article describes the effect of heat treatment on the structural-phase state and properties of a multilayer Cr-Al-Co-Y coating obtained by magnetron sputtering. Heat treatment was carried out at 400, 800 and 1000 °C.
Mazhyn Skakov   +6 more
doaj   +1 more source

Phase separation in mullite-composition glass

open access: yesScientific Reports, 2022
AbstractAluminosilicates (AS) are ubiquitous in ceramics, geology, and planetary science, and their glassy forms underpin vital technologies used in displays, waveguides, and lasers. In spite of this, the nonequilibrium behavior of the prototypical AS compound, mullite (40SiO2-60Al2O3, or AS60), is not well understood.
Stephen K. Wilke   +7 more
openaire   +3 more sources

Computer-Controlled Detonation Spraying: Flexible Control of the Coating Chemistry and Microstructure

open access: yesMetals, 2019
This article is a focused review aimed to describe the potential of the computer-controlled detonation spraying (CCDS) for producing and designing coatings with variable chemical and phase compositions and microstructure and promising properties.
Vladimir Yu. Ulianitsky   +3 more
doaj   +1 more source

Comprehensive Analysis of Microstructure and Hot Deformation Behavior of Al-Cu-Y-Mg-Cr-Zr-Ti-Fe-Si Alloy

open access: yesMetals, 2023
Low sensitivity to hot cracking is very important not only for casting but also for ingots of wrought alloys. Doping of Al-Cu-(Mg) alloys by eutectic forming elements provides an increasing resistance to hot cracking susceptibility, but it also leads to ...
Sayed M. Amer   +6 more
doaj   +1 more source

Nanoarchitected metal/ceramic interpenetrating phase composites

open access: yesScience Advances, 2022
Architected metals and ceramics with nanoscale cellular designs, e.g., nanolattices, are currently subject of extensive investigation. By harnessing extreme material size effects, nanolattices demonstrated classically inaccessible properties at low density, with exceptional potential for superior lightweight materials. This study expands the concept of
Jens Bauer   +3 more
openaire   +4 more sources

On the Question of the Complex Processing of Pyrite Cinders

open access: yesInorganics, 2023
A complex processing variant for pyrite cinders, i.e., the technogenic waste generated in the production of sulfuric acid, was proposed. This method provided preliminary chemical activation of the initial raw materials that comprised thermal treatment ...
Bagdaulet Kenzhaliyev   +5 more
doaj   +1 more source

Properties of the Cement, Slag and Fly Ash Mixture Composition Corresponding to CEM II/C-M and CEM VI

open access: yesMaterials Proceedings, 2023
In the study, cement mixtures containing granulated blast furnace slag (GBFS) and siliceous fly ash (SFA) were tested, including those corresponding to special cements according to the PN-B-19707: 2013 standard.
Ewelina Tkaczewska, Grzegorz Malata
doaj   +1 more source

Composition-induced structural phase transitions in the (Ba1xLax)2In2O5+x (0pxp0.6) system [PDF]

open access: yes, 2005
Composition-induced structural phase changes across the high temperature, fast oxide ion conducting (Ba1xLax)2In2O5+x, 0pxp0.6, system have been carefully analysed using hard mode infrared (IR) powder absorption spectroscopy, X-ray powder diffraction and
Carpenter, M.A.   +7 more
core   +2 more sources

Wet Ball Milling Applied to Production of Composites and Coatings Based on Ti, W, and Nb Carbides

open access: yesPowders, 2023
The paper demonstrates the potential of wet ball milling of metals for the synthesis of various carbides and carbohydrides. The work reports on multicomponent carbides formed in Ti-(Cu/Fe/Si)-C, W-Fe-C, and Nb-(Cu/Fe/Si/Al)-C systems, as well as ...
Marina Eryomina, Svetlana Lomayeva
doaj   +1 more source

Supported liquid membranes: instability effects [PDF]

open access: yes, 1992
The instability behavior of several supported liquid membranes (SLMs) has been studied for a system in which nitrate ions are removed from an aqueous feed phase and concentrated in a stripping phase.
Bargeman, D.   +2 more
core   +2 more sources

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