Results 71 to 80 of about 451,301 (380)

Dissolution Behavior of Al2O3 Inclusions in CaO-Al2O3 Based Slag Representing Aluminothermic Reduction Slag

open access: yesCrystals, 2020
In the preparation of CuCr alloy using the self-propagating high-temperature synthesis (SHS)-metallurgy method, the dissolution of alumina in molten slag has an important influence in two key steps: aluminum thermal reduction and slag refining.
Guan-Yong Shi   +3 more
doaj   +1 more source

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu   +14 more
wiley   +1 more source

Al-Ti-B Grain Refiners Via Powder Metallurgy Processing Of Al/K2Tif6/Kbf4 Powder Blends

open access: yesJournal of Alloys and Compounds, 2009
The response to thermal exposure of ball-milled Al/K2TiF6/KBF4 powder blends was investigated to explore the potential of PM processing for the manufacture of Al-Ti-B alloys. K2TiF6 starts to be reduced by aluminium as early as 220 degrees C when ball-milled Al/K2TiF6/KBF4 powder blends are heated. The reaction of KBF4 with aluminium follows soon after.
openaire   +3 more sources

Application of multi-stage vacuum distillation for secondary resource recovery: potential recovery method of cadmium telluride photovoltaic waste

open access: yesJournal of Materials Research and Technology, 2020
With the widespread use of cadmium telluride solar cells, environmental protection, and effective recycling approaches for solar cell component waste have become topics of concern.
Xiaofeng Zhang   +6 more
doaj   +1 more source

Modeling of Gas-Steel-Slag Three-Phase Flow in Ladle Metallurgy: Part I. Physical Modeling

open access: yes, 2017
High quality constraints demand the development of steel with increasingly stringent cleanliness levels. Metallurgical operations can be optimized to improve the cleanliness of molten steel with respect to metal treatment in the ladle, tundish and mold ...
Zhongqiu Liu, Linmin Li, Baokuan Li
semanticscholar   +1 more source

Microstructure and Mechanical Properties of a Fiber Welded Socket-Joint Made of Powder Metallurgy Molybdenum Alloy

open access: yesMetals, 2019
Fiber welding of socket-joints made of nanostructured high-performance molybdenum alloy (NS Mo) was carried out to get a better understanding of the role of welding heat input.
M. Xie   +4 more
semanticscholar   +1 more source

Biomimetic Ion‐Orchestrated Hierarchical Armored Hydrogel Coating for Robust and Multifunctional Surface Protection

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by the skin‐toughening mechanism of marine sponges, an ion‐orchestrated structural engineering strategy is proposed to regulate the surface microstructure of hydrogel coatings, enabling the in situ formation of a robust armor layer that enhances mechanical integrity and provides multifunctional protection by suppressing fouling attachment and ...
Wenshuai Yang   +11 more
wiley   +1 more source

Microstructure and mechanical properties of an Mg-3Zn- o.5Zr-5HA nanocomposite processed by ECAE [PDF]

open access: yes, 2014
Mg matrix composites reinforced by natural bone constituent hydroxyapatite (HA) particles have shown promising in-vitro corrosion resistance but are inconsistent in both electrochemical and mechanical performances because of severe particle segregations.
Huang, Y, Li, J
core   +1 more source

Exciton‐Polaritons in Nanoscale Metal‐Organic Frameworks: A Platform for the Reversible Modulation of Strong Light‐Matter Coupling via the Chemical Environment

open access: yesAdvanced Functional Materials, EarlyView.
Strong exciton‐photon coupling is achieved by integrating porphyrin ligand‐based MOF nanoparticles in optical cavities, as evidenced by pronounced polariton branch anticrossing. The porous nature of the resonator enables precise, reversible tuning via vapor pressure, unlocking unprecedented chemical‐environment controlled dynamic polaritonic platforms ...
Beatriz de Sola‐Báez   +7 more
wiley   +1 more source

Influence of an induction furnace’s electric parameters on mass transfer velocity in the liquid phase

open access: yesMetalurgija, 2012
This article is an analysis of the results obtained under the tests aimed at determination of the infl uence exerted by the current frequency of an induction furnace on the mass transfer coeffi cient for liquid metallic phase.
R. Przyłucki   +3 more
doaj  

Home - About - Disclaimer - Privacy