Results 71 to 80 of about 1,533 (254)

The Effect of Demineralization on Coal Functional Group Pyrolysis: Rank‐Dependent Dual Mechanisms of Structural Reorganization and Mineral Catalysis

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Coal pyrolysis, as a key thermochemical conversion process, is significantly influenced by inherent minerals, yet their role across different coal ranks remains inadequately understood. This study investigates the effect of acid‐washing (demineralization) on the thermal decomposition of six functional groups (aliphatic C–H, aromatic C–H/C=C, C=
Zhiyuan Niu   +4 more
wiley   +1 more source

Combined Gravimetric, Electrochemical, and Computational Research on Benzothiophene Derivatives as Effective Corrosion Inhibitors for Mild Steel

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Four benzothiophenes, thianaphthene (BT‐1), 3‐bromothianaphthene (BT‐2), benzo[b]thiophene‐2‐carboxaldehyde (BT‐3), and benzo[b]thiophene‐2‐carbonitrile (BT‐4), were tested as mild steel corrosion inhibitors in 1‐M HCl. The compounds have the similar benzothiophene core but differ in the substituents bound to the ring.
Nhlanhla G. Chirwa   +3 more
wiley   +1 more source

Effect of plastic deformation on microstructure and general corrosion behavior of alloy 690 in SG crevice condition of PWR secondary system containing hydrogen

open access: yesJournal of Materials Research and Technology
The purpose of this study is to elucidate the effect of plastic deformation on the microstructure and general corrosion behavior of Alloy 690 in a simulated steam generator crevice of a pressurized water reactor secondary system containing hydrogen.
Ji-Young Han   +5 more
doaj   +1 more source

Operational stability of mixed Sn–Pb perovskite solar cells: Mechanisms, mitigation strategies, and perspectives

open access: yesBulletin of the Korean Chemical Society, EarlyView.
This review consolidates mechanisms and solutions for mixed Sn–Pb perovskite solar cells. It identifies Sn2+ oxidation, iodine generation, and interfacial defects as primary instabilities. It discusses progress in additives, interface passivation, alternative hole transport layers, and solvent engineering as well as future directions for achieving long‐
Lei Chen, Kai Zhu
wiley   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

open access: yesBiological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson   +9 more
wiley   +1 more source

Effect of Solution Treatment on Structure and Mechanical Properties of Nickel Base Alloy 690

open access: yesTeshugang, 2011
The effect of solution treatment at 1 050 - 1 150℃ on structure and mechanical properties of 1. 0 mm cold rolled plate of nickel base alloy 690 (% : 0. 020C, 29. 93Cr, 9. 82Fe, 0. 19A1, 0. 25Ti, 0. 023Nb, 0. 012Mo, 0.
王子君   +4 more
doaj  

A novel microalloying strategy for superior creep performance in LPBF Inconel 718 superalloy

open access: yesMaterials Research Letters
For high-temperature service components, excellent creep performance is critical. However, oxygen embrittlement limits the creep performance of laser powder bed fusion (LPBF) IN718 alloy.
Ruizhi Chen   +11 more
doaj   +1 more source

Enabling Wide‐Temperature Range Li‐S Batteries via Asymmetric‐Coordinated Titanium Sites‐Implanted Graphene Single‐Atom Electrocatalysts

open access: yesCarbon Energy, EarlyView.
A Ti‐based single‐atom catalyst featuring isolated Ti atoms anchored on reduced graphene oxide (Ti‐rGO) has been successfully synthesized as a sulfur host material. This Ti‐rGO composite effectively integrates the robust adsorption capacity of Ti‐O5 coordination groups toward LiPSs with the rapid mass transport kinetics inherent to its porous ...
Shilin Chen   +3 more
wiley   +1 more source

Technology Practice of Steelmaking Inconel 690 Alloy by a 10t AOD

open access: yesTeshugang, 2019
Inconel 690 alloy is widely used in steam generator heat transfer tubes in nuclear power plants. It usually u¬ses the vacuum induction furnace smelting consumable electrode,smelting cost is high.
张如金   +4 more
doaj  

Home - About - Disclaimer - Privacy