Results 11 to 20 of about 8,537 (291)

Localized corrosion and repassivation behaviors of additively manufactured titanium alloys in simulated biomedical solutions

open access: yesnpj Materials Degradation, 2023
The localized corrosion behavior of additively manufactured (AM) titanium alloys is studied based on the relation between pitting potentials, the flux of oxygen vacancies in a passive film, and the repassivation rate using potentiodynamic polarization ...
Dong-Il Seo, Jae-Bong Lee
doaj   +1 more source

Sustainable and Inherent Safe Tribological Process for Metal Nanoparticles Production

open access: yesChemical Engineering Transactions, 2021
A green and sustainable process is proposed for the synthesis of metal nanoparticles (NPs) by means of a solid disaggregation in a liquid phase. A solid metal substrate, embedded in a solution containing suitable capping agents and surfactants, undergoes
Andrea P. Reverberi   +4 more
doaj   +1 more source

Study on Preparation and Properties of Intrinsic Super-Hydrophobic Foamed Magnesium Oxychloride Cement Material

open access: yesApplied Sciences, 2020
As we all know, magnesium oxychloride foamed cement material has poor water resistance, leading to a decline in application value. In our research, tetraethylorthosilicate (TEOS) and triethoxy-1H, 1H, 2H, 2H-tridecylfluoro-n-octylsilane (FAS) were pre ...
Jiaxin Huang   +3 more
doaj   +1 more source

Cold sintering process for fabrication of a superhydrophobic ZnO–polytetrafluoroethylene (PTFE) ceramic composite

open access: yesJournal of Advanced Ceramics, 2023
Composite coatings or films with polytetrafluoroethylene (PTFE) are typically utilized to offer superhydrophobic surfaces. However, the superhydrophobic surfaces usually have limited durability and require complicated fabrication methods.
Xuetong Zhao   +8 more
doaj   +1 more source

Elevated temperature erosion of abradable seal coating

open access: yesJournal of Electrochemical Science and Engineering, 2022
Abradable coatings are essentially sealing materials and are deposited by thermal spray techniques. The main function of these coatings is to control the clearance of the gas path of the gas turbine engines.
Bharti Malvi, Manish Roy
doaj   +1 more source

The Doctrine of “Unity in Multiplicity and Multiplicity in Unity” and Its Role in Explaining Individual Unity of Existence [PDF]

open access: yesپژوهشنامه فلسفه دین, 2020
"Unity in multiplicity and multiplicity in unity" is an effectual doctrine in explaining the purposes of transcendental wisdom, particularly the unification (tawhid) of existence. Transcendental theosophers like mystics have emphasized this doctrine. For
Mohammad Reza Ershadinia
doaj   +1 more source

Platelet-Rich Plasma Injection With Percutaneous Needling for Recalcitrant Lateral Epicondylitis: Comparison of Tenotomy and Fenestration Techniques. [PDF]

open access: yes, 2017
Background: Recalcitrant lateral epicondylitis (LE) is a common debilitating condition, with numerous treatment options of varying success. An injection of platelet-rich plasma (PRP) has been shown to improve LE, although it is unclear whether the method
Culp, Randall W.   +6 more
core   +2 more sources

Sustainable Development of Cissus Quadrangularis Stem Fiber/epoxy Composite on Abrasive Wear Rate

open access: yesJournal of Natural Fibers, 2022
Natural fibers have the potential to replace artificial fibers in structural applications. The abrasive wear performance of natural fiber–reinforced polymer composite has not been investigated in many studies.
Jenish Iyyadurai   +3 more
doaj   +1 more source

How river rocks round: resolving the shape-size paradox [PDF]

open access: yes, 2014
River-bed sediments display two universal downstream trends: fining, in which particle size decreases; and rounding, where pebble shapes evolve toward ellipsoids. Rounding is known to result from transport-induced abrasion; however many researchers argue
Domokos, G.   +3 more
core   +5 more sources

Hazards Mitigation of Lahar Flows on Semeru Volcano after the 4 December 2021 Eruption Based on PS-InSAR

open access: yesInternational Journal of Disaster Management, 2023
Volcanic eruption is one of the phenomena that can change the volcanic landscape drastically. Monitoring of volcanic edifices after eruptions should be considered to further understand the potential hazards in the future.
Cholisina Anik Perwita   +4 more
doaj   +1 more source

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