Results 81 to 90 of about 6,461 (205)

Chemical diffusion of fluorine in jadeite melt at high pressure [PDF]

open access: yes, 1984
The chemical diffusion of fluorine in jadeite melt has been investigated from 10 to 15 kbars and 1200 to 1400°C using diffusion couples of Jadeite melt and fluorine-bearing jadeite melt (6.3 wt.% F). The diffusion profile data indicate that the diffusion
Dingwell, Donald B.   +1 more
core   +1 more source

Results of Hydrogen Reduction of Iron Ore Pellets at Different Temperatures

open access: yessteel research international, Volume 96, Issue 5, May 2025.
Using hydrogen as a reductant in DRI units is the steelmaking industry's future, significantly reducing CO2 emissions. Hydrogen‐based reduction depends on the temperature. High temperature can lead to a high reduction degree; however, this may also bring some change in the porosity and microstructures of pellets.
Oleksandr Kovtun   +4 more
wiley   +1 more source

Reduction behavior and reaction kinetics of iron ore-biomass composite pellets

open access: yes工程科学学报, 2015
The reduction reaction rate, reduction degree, surface microstructure and weight loss of composite pellets with different components under biomass syngas atmosphere were investigated to illustrate the effects of biomass addition in pellets on the ...
LUO Si-yi, MA Chen, SUN Peng-peng
doaj   +1 more source

Experimental research and kinetics analysis on hydrogen reduction of limonite

open access: yes工程科学学报, 2015
This article presents experimental studies on the effects of H2 on the reduction degree and rate of limonite at different temperatures and kinetic analysis during the hydrogen reduction.
LI Lin   +5 more
doaj   +1 more source

Ancient technology and punctuated change: Detecting the emergence of the Edomite Kingdom in the Southern Levant. [PDF]

open access: yes, 2019
While the punctuated equilibrium model has been employed in paleontological and archaeological research, it has rarely been applied for technological and social evolution in the Holocene.
Ben-Yosef, Erez   +5 more
core   +2 more sources

Optimization of Flow Characteristics of Blast Furnace Slag [PDF]

open access: yes, 2012
A study of the flow characteristics of blast furnace slag is important to record the softening and melting phenomena in blast furnace which greatly influence the extent and location of the cohesive zone having a direct say on the blast furnace operation,
Dash, Supratik, Mohanty, Nachiketa
core  

Preliminary Archaeological Examination of Ohio's First Blast Furnace: The Eaton (Hopewell) [PDF]

open access: yes, 1980
Author Institution: Department of Sociology and Anthropology, Youngstown State UniversityThe Eaton (Hopewell) Furnace located near Struthers, Ohio was built in 1802-1803.
White, John R.
core  

Beyond the Battlefield: The Park That Once Was Stevens’s Furnace

open access: yes, 2016
If you’re a frequent reader of the Compiler, it comes as no news to you that the Gettysburg area is historic for more than just its battlefield. From a pre-war African American community to the World War I tank camp commanded by a young Dwight Eisenhower,
Lavery, Kevin P.
core  

Study on flow characteristics of primary blast furnace slag [PDF]

open access: yes, 2014
The primary slag generated in the cohesive zone of the blast furnace determines the fuel rate as well as the quality of the hot metal in terms of its silicon content.
Panigrahi, S, Sahoo, B K
core  

Modelling shell and oscillation mark formation during continuous casting via explicit incorporation of slag infiltration

open access: yes, 2010
The development of reliable numerical models is vital to improve the quality of continuously cast products and to increase the productivity of the casting machine.
Ramirez Lopez, Pavel Ernesto   +1 more
core   +1 more source

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