Results 21 to 30 of about 13,137,816 (371)

Investigating of Mechanical Properties of Mortars Based on Fly Ash and Blast Furnace Slag Activated with Alkali [PDF]

open access: yes, 2017
Alkali activated mortars obtained from granulated blast furnace slag and fly ash were used instead of Portland cement by activating with alkali. Sodium silicate and sodium hydroxide were activated blast furnace slag and fly ash.
Filazi, A. (Ahmet)   +3 more
core   +1 more source

The Effect of Liquid Hydrogen Tank Size on Self-Pressurization and Constant-Pressure Venting

open access: yesHydrogen, 2023
Hydrogen represents a promising renewable fuel, and its broad application can lead to drastic reductions in greenhouse gas emissions. Keeping hydrogen in liquid form helps achieve high energy density, but also requires cryogenic conditions for storage as
Konstantin I. Matveev, Jacob W. Leachman
doaj   +1 more source

Effects of thermal treatment and weathering in the resistance against termites of a fast-growing pine wood

open access: yesMaderas: Ciencia y Tecnología, 2023
Considering the limited existing literature on the combined effects of thermal treatment and weathering on the resistance of fast-growing pine wood to subterranean termites, this work deals with the resistance against subterranean termites of a ...
Ricardo Ripoll de Medeiros   +5 more
doaj   +1 more source

Effect of Hot-Rolling on the Microstructure and Impact Toughness of an Advanced 9%Cr Steel

open access: yesCrystals, 2023
A 9%Cr martensitic steel with Ta and B additions was subjected to thermo-mechanical treatment (TMT) including rolling in the range of metastable austenite at 900–700 °C followed by water quenching and tempering at different temperatures. Applied TMT with
Evgeniy Tkachev   +2 more
doaj   +1 more source

Grain Boundary Assemblies in Dynamically-Recrystallized Austenitic Stainless Steel

open access: yesMetals, 2016
The grain boundary misorientation distributions associated with the development of dynamic recrystallization were studied in a high-nitrogen austenitic stainless steel subjected to hot working. Under conditions of discontinuous dynamic recrystallization,
Marina Tikhonova   +3 more
doaj   +1 more source

Effect of Tungsten on Creep Behavior of 9%Cr–3%Co Martensitic Steels

open access: yesMetals, 2017
The effect of increasing tungsten content from 2 to 3 wt % on the creep rupture strength of a 3 wt % Co-modified P92-type steel was studied. Creep tests were carried out at a temperature of 650 °C under applied stresses ranging from 100 to 220 MPa with a
Alexandra Fedoseeva   +3 more
doaj   +1 more source

Experimental study of the particle agglomeration on its mechanical properties of collapsible loess

open access: yesFrontiers in Earth Science, 2022
Loess, distributed all over the world, exhibits the behavior that is related to their formation history, mineralogy, and microstructure, which can cause serious geotechnical engineering problems.
Meng Zhao   +7 more
doaj   +1 more source

Effect of Si and Zr on the Microstructure and Properties of Al-Fe-Si-Zr Alloys

open access: yesMetals, 2017
The effects of Si and Zr on the microstructure, microhardness and electrical conductivity of Al-Fe-Si-Zr alloys were studied. An increase in the Zr content over 0.3 wt.
Anna Morozova   +6 more
doaj   +1 more source

Comparison of the Mechanical Properties of Four-layer Epoxy Composite Reinforced with Natural Jute Fibers and Symmetrical E-glass Synthetic Fibers [PDF]

open access: yes, 2020
Research that produces environmentally friendly products continues to be developing. Research related to the natural fiber jute material and epoxy matrix has done.
Abdullah, H. A. (Hanif)   +5 more
core  

Synergy between conventional phosphorus fire retardants and organically-modified clays can lead to fire retardancy of styrenics [PDF]

open access: yes, 2003
Polystyrene–clay nanocomposites combined with phosphorous-containing fire retardants have been prepared and used to explore the thermal stability and mechanical properties of the polymer formed. The amounts of fire retardants and clay used were varied to
Chigwada, Grace, Wilkie, Charles A.
core   +2 more sources

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