Results 51 to 60 of about 3,420 (211)

A Critical Review on Nitrogen Control in the Scrap‐Based Electric Arc Furnace Steelmaking Route to Produce Low‐Nitrogen Steels

steel research international, EarlyView.
In primary electric arc furnace (EAF) steelmaking, carbon boiling removes nitrogen from liquid steel and sustains slag foaming. In 100% scrap‐ or hydrogen direct reduced iron (HDRI)‐based EAF steelmaking, carbon boiling is absent; therefore, carbonaceous material and oxygen injection into the slag is needed to maintain foaming and avoid nitrogen ...
Zushu Li, Lei Guo, Jintao Gao, Yuri Korobeinikov   +3 more
wiley   +1 more source

Hybrid Temperature Modeling for the Ruhrstahl–Heraeus Process: Coupling a Data‐Driven Approach With a Physics‐Based Process Model

steel research international, EarlyView.
A hybrid framework combining a mechanistic tanks‐in‐series model, thermodynamic data, and statistical learning methods was developed for continuous temperature prediction during RH vacuum treatment. The framework accounts for temperature changes caused by alloy additions, O2 blowing via top lance, and heat losses to the surroundings. Validation against
Daniel Kavić, Michael Bernhard, Hannes Prousch, Roman Rössler, Christian Bernhard   +4 more
wiley   +1 more source

The experience of using calcium carbide for the deoxidation of steel to replace aluminum in the conditions of OJSC «BSW – Management company of the holding «BMC»

Литьë и металлургия, 2020
The article deals with issues related to the use of calcium carbide in steelmaking, instead of secondary aluminum and other deoxidizing materials, in order to reduce the cost of deoxidizing steel and slag.It was assumed that reducing the content of ...
О. M. Grudnitsky
doaj   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, Volume 36, Issue 80, 5 October 2026.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +1 more source

Adaptive Cu Reconstruction in Heterostructure Drives High‐Rate Nitrate‐to‐Ammonia Conversion

Advanced Science, Volume 13, Issue 55, 5 October 2026.
An adaptively reconstructed Cu/CoOX heterojunction, featuring a surface‐localized, hydroxyl‐rich oxidized Cu species, forms in situ from a CuO/CoOX (Co1Cu9OX) pre‐catalyst during electrochemical nitrate reduction. The self‐adaptive reconstruction and the incorporation of heterostructure regulate nitrogen‐containing intermediate adsorption and *H supply,
Chunyu Yuan, Saikat Bolar, Yongzheng Zhang, Akitaka Ito, Tatsuhiko Ohto, Takeshi Fujita   +5 more
wiley   +1 more source

Preparation of Titanium Metal by Deoxygenation Under KCl-NaCl-YCl₃ System Using Soluble Anode

Metals
Titanium metal is primarily produced via the Kroll process, which is characterized by a semi-continuous production flow and a lengthy process cycle, resulting in high production costs. Researchers have explored alternative methods for titanium production,
Tianzhu Mu, Fuxing Zhu, Yan Zhao, Haoyu Fang, Haohang Ji, Lei Gao   +5 more
doaj   +1 more source

Influences of Cleanliness, Carbide Size, Hardness, and Residual Stresses on Long‐Life Fatigue Strength and Crack‐Initiation Mechanisms in Carbide‐Rich Cold‐Work Tool Steels Using Normalized S–N Curves and Database‐Driven Validation of Murakami's √Area Model

steel research international, Volume 97, Issue 10, Page 5221-5267, October 2026.
Rotating‐bending fatigue tests on AISI D2 and AISI A11 quantify how cleanliness, carbide structure, hardness, and fabrication‐induced compressive residual stresses govern long‐life fatigue at NG = 107 cycles. Statistical fracture‐surface analysis and extreme‐value √area statistics link crack‐initiators to LLF strength.
Lennart Mirko Scholl, Frederik Tegeder, Dhirendar Chauhan, Bengt Hallstedt, Tobias Hajeck, Alexander Bezold, Christoph Broeckmann   +6 more
wiley   +1 more source

Growth of InAs quantum wires with Ga-assisted deoxidation on cleaved-edge GaAs (110) surface

, 2011
We have fabricated site-controlled InAs quantum wires (QWRs) on the cleaved surface (110) of AlGaAs/GaAs superlattices (SLs) structures by using Ga-assisted deoxidation method.
Wang, Zhan-Guo, Xu, Bo, Jian Qing Liu, Chen, Yong-Hai, Bo Xu, Zhan Guo Wang, Yong Hai Chen, Liu, Jian-Qing   +7 more
core   +1 more source

Rapid Identification of Mineral Phases on Continuous‐Casting Stopper Rods via SEM–CL Analysis

Journal of the American Ceramic Society, Volume 109, Issue 10, October 2026.
ABSTRACT Although the identification of solidified liquid (12CaO·7Al2O3, 3CaO·Al2O3) and CaO·Al2O3 phases is critical for detecting stopper rod degradation, it is hindered by complex morphologies and the analytical effort required. We propose a rapid method for identifying mineral phases on alumina stopper rods used in continuous casting of Ca‐treated ...
Susumu Imashuku
wiley   +1 more source

Copper deoxidation kinetics utilizing carbon monoxide

, 1977
Gaseous deoxidation of liquid copper with carbon monoxide as the reducing gas has been examined. The reducing gas was introduced at a submerged orifice so that well characterized, single bubbles were formed.
Phillips, R. B., J. S. Foster, R. B. Phillips, Foster, J. S., R. J. Andreini, Andreini, R. J.   +5 more
core   +1 more source