Results 151 to 160 of about 33,500 (261)

Modeling the Thermal Properties of Hydrogen‐Based Direct Reduced Iron Using Computational Thermodynamics and Machine Learning

steel research international, EarlyView.
Hydrogen‐based direct reduced iron (H‐DRI) melts differently from scrap and carbon‐bearing DRI. This work combines differential scanning calorimetry experiments, FactSage thermodynamics, and simple composition‐based regression to predict solidus, liquidus, heat capacity, and enthalpy for H‐DRI.
Ankur Agnihotri, Petri Sulasalmi, Pasquale Cavaliere, Ville‐Valtteri Visuri   +3 more
wiley   +1 more source

Immobilization of Ca²⁺ by OH^- ions on calcium silicate hydrates. [PDF]

Phys Chem Chem Phys
Casar Z, Mismetti L, Harris M, Greenwell HC, Scrivener K, Předota M, Bowen P.   +6 more
europepmc   +1 more source

Agglomeration Behavior of Nonmetallic Particles on the Surface of Si‐Killed Liquid Steel Using HT‐CSLM: An In Situ Investigation

steel research international, EarlyView.
The in situ agglomeration behavior of semisolid Al–silicate inclusions in Si‐killed steel is studied using high‐temperature confocal scanning laser microscopy. Particle motion and interparticle forces at the steel/argon interface are quantified and compared with a modified capillary interaction model.
Suwam Kumar, Muhammad Nabeel, Angshuman Podder, Andre B. Phillion, Neslihan Dogan   +4 more
wiley   +1 more source

Calcium silicate liner versus no liner in selective caries removal: a one-year randomized clinical trial. [PDF]

BMC Oral Health
Terceño P, Olivieri JG, Fuentes V, Ceballos L.   +3 more
europepmc   +1 more source

Influence of Oxygen Contamination on the Genesis of Nonmetallic Inclusions in a Microalloyed Steel

steel research international, EarlyView.
Oxygen contamination during melting of steels strongly affects the evolution of nonmetallic inclusions. Controlled remelting experiments, combined with SEM/EDS analysis and thermodynamic simulations, reveal how reoxidation promotes the transformation of alumina‐based inclusions into complex FeO–MnO oxides and other interactions.
Leandro Pianca Prandi, Felipe Fardin Grillo, Estéfano Aparecido Vieira   +2 more
wiley   +1 more source

Clinical and radiographic outcomes of three calcium silicate-based cements in primary tooth pulpotomy: a randomized clinical trial. [PDF]

BMC Oral Health
Yucel R, Sengul F.
europepmc   +1 more source

Hydrogen‐Based Reduction of Hematitic Iron Ore in a Fluidized Bed Kinetic Reactor at Elevated Pressures

steel research international, EarlyView.
This study investigates the reduction behavior of two international iron ores, including a synthetic hematite produced by oxidation of magnetite, in a novel fluidized‐bed kinetic reactor at elevated pressures. The reduction takes place at various temperatures (650°C, 700°C, and 750°C), and various hydrogen partial pressures (30, 55, and 80 vol% H2 ...
Valentina Nigitz, Aaron Wieder, Sandra Jezernik, Christoph Ahr, Mark Berchtold, Franz Winter   +5 more
wiley   +1 more source

Apical delta filling with calcium silicate and epoxy resin sealers using different obturation techniques by microcomputed tomography. [PDF]

J Appl Oral Sci
Santos WSD, Augusto J, Torres-Carrillo AJS, Petean IBF, Cruz-Filho AMD, Sousa-Neto MD, Lopes-Olhê FC, Mazzi-Chaves JF.   +7 more
europepmc   +1 more source

Experimental and Computational Investigation of Slag–Refractory Interactions Under Conditions Relevant to Hydrogen Plasma Smelting Reduction

steel research international, EarlyView.
This study investigates how slag interacts with magnesia–carbon (MgO–C) refractories under conditions relevant to hydrogen plasma smelting reduction. High‐temperature refractory wear tests are combined with thermodynamic modeling to examine refractory dissolution into slag and slag infiltration into the refractory.
Eeli‐Matti Sassi, Eetu‐Pekka Heikkinen, Tero Vuolio, Riku Mattila, Ville‐Valtteri Visuri   +4 more
wiley   +1 more source

Ultrasonic activation improves bond strength of calcium silicate-based sealers to dentin: an in vitro study. [PDF]

BMC Oral Health
Aynur G, Topkara ÖF, Kalaycı A.
europepmc   +1 more source