Results 131 to 140 of about 29,206 (304)

Acoustic Activity of Intergranular Corrosion Sensitized AISI 304L in Double‐Loop Electrochemical Potentiodynamic Reactivation Test

Materials and Corrosion, EarlyView.
Intergranular corrosion of AISI 304L is analyzed, combining DLEPR test and AE. Slow scan rate polarization reveals time‐shifted and frequency‐dependent acoustic emission in the active region of the DLEPR curve, allowing a separation between passive oxide rupture, intergranular corrosion and pitting. ABSTRACT Intergranular corrosion (IGC) susceptibility
Alexander Kreisch, Marcel Mandel, Lutz Krüger   +2 more
wiley   +1 more source

Surface Engineering of Ti3C2Tx MXenes via Silanol Functionalization for Improved Electrochemical Performance

Small, EarlyView.
This study explores the covalent functionalization of Ti3C2Tx using 5,5′‐bis(triisopropoxysilyl)‐2,2′‐bipyridine in different solvents, revealing that only m‐xylene enables effective covalent bonding, ensuring structural stability and preventing layer swelling.
Abelardo Sánchez‐Oliva, Verónica Montes‐García, Ke Li, Kaitlyn Prenger, Xuyun Guo, Iwona Janica, Wojciech Kukułka, Adrián Tamayo, Pilar Prieto, Paolo Samorì, Valeria Nicolosi, Artur Ciesielski   +11 more
wiley   +1 more source

Surface Locomotion of Cell‐Sized Microrobots Subject to Adhesive Heterogeneity

Small, EarlyView.
Chemically powered, cell‐sized microrobots exhibit translational, circular, or spiral motion through a balance among self‐phoretic propulsion, drag, gravity, and heterogeneous surface interactions. Experiments show that microrobot design and substrate conditions regulate both mobility and trajectory type.
Byung Ha Kang, Sungyun Yang, Hyeongho Min, Michael S. Strano   +3 more
wiley   +1 more source

Enhancing Coherence Length in Tailored Chiral Hybrid Polymer‐Wrapped Single‐Walled Carbon Nanotube Superstructures

Small, EarlyView.
Conductance measurements demonstrate a fivefold enhancement in phase coherence length in a specially designed chiral polymer‐wrapped metallic single‐walled carbon nanotube (m‐SWNT) superstructure, relative to the corresponding achiral m‐SWNT benchmark.
Hanna T. Fridman, Riley H. Stephenson, Meital Ozeri, James A. Alatis, Alexander C. Wilcox, Jianan Yang, Francesco Mastrocinque, Shira Yochelis, Michael J. Therien, Yossi Paltiel   +9 more
wiley   +1 more source

Influence of Tapered-End and Round-End Bristle Designs on the Abrasive Enamel Wear Using Toothpastes With High Discrepancies in Abrasiveness. [PDF]

Int J Dent Hyg
ABSTRACT Purpose The aim of this in vitro study was to investigate the influence of bristle end design of toothbrushes and the relative enamel abrasivity (REA) of used toothpaste on the resulting abrasive enamel wear. Materials and Methods A total of 160 bovine enamel samples were allocated into eight groups (n = 20) and surface topography was recorded
Stübi MS, Tanner M, Hamza B, Svellenti L, Attin T, Wegehaupt FJ.   +5 more
europepmc   +2 more sources

The Influence of the Pretreatment of Tool Steel on the Running‐In Phase of Diamond‐Like Carbon Coatings

steel research international, EarlyView.
The influence of tool steel pretreatment on the running‐in behavior of TiNb‐diamond‐like carbon (DLC) coatings is investigated. Ion etching promotes carbide protrusion and increases coating roughness, while post‐deposition polishing reduces surface asperities.
Matěj Buřil, Ladislav Cvrček, Jan Walter, Miha Čekada, Marie Kudrnová, František Lukáč   +5 more
wiley   +1 more source

Effect of Different Surface Treatments on Resistance to Abrasive Wear of AISI 4140 Steel

steel research international, EarlyView.
This study investigates how different surface treatments affect resistance to abrasive wear of AISI 4140 Steel. The wear rate was significantly higher in samples subjected to conventional treatments than in samples coated using the HVOF process, demonstrating the superior efficiency of coatings applied by thermal spraying in mitigating abrasive wear ...
Everton Freitas de Oliveira, Tomasz Trzepieciński, Valmir Dias Luiz, Jorge Luis Coleti   +3 more
wiley   +1 more source

Effect of chitosan‐containing desensitizers applied prior to bleaching on the physical properties of enamel

European Journal of Oral Sciences, EarlyView.
Abstract This in vitro study evaluated the effects of adding chitosan (Chi) to desensitizing agents applied before dental bleaching on enamel properties. Bovine enamel specimens were allocated to seven groups (n = 12): no treatment (negative control), 2% NaF (positive control), 2% NaF + 2% Chi, 2% NaF + 5% Chi, 2% NaF + 5% KNO3, 2% NaF + 5% KNO3 + 2 ...
Júlia Barbato, Luís Otávio Passos, Carolina Meneghin Barbosa, Marcos Roberto de Lima Benati, Renata Siqueira Scatolin, Ana Carolina Cabral Roque, Tatiane Cristina Dotta, Waldemir Francisco Vieira‐Junior, Laura Nobre Ferraz   +8 more
wiley   +1 more source

Engineering Large-Grain Metal Halide Perovskite Films via Chemical Vapor Deposition for High-Performance, Ultralow-Noise Perovskite Photodetectors. [PDF]

Adv Sci (Weinh)
Chemical vapor deposition produces large‐grain, phase‐pure CsPbBr3 films (grains up to 35 µm) with Drude‐like terahertz photoconductivity and twofold higher carrier mobility versus spin‐coated references. These microstructural advances translate into photodetectors with a detectivity of 8.4 × 1012 Jones, dark current below 1 pA cm−2, X‐ray sensitivity ...
Vanden Brande R, Seth S, Gao L, Pradhan B, Khicher D, Bazylevska A, Qu W, Sternemann C, Wang H, De Feyter S, Xu W, Zhang F, Bonn M, Hofkens J, Debroye E.   +14 more
europepmc   +2 more sources

Fibroblast and bacterial adhesion on a 3D‐printed polyetheretherketone‐based implant material

European Journal of Oral Sciences, EarlyView.
Abstract This study investigated fibroblast and bacteria proliferation on polyetheretherketone (PEEK)‐implant material 3D‐printed by fused deposition modeling (FDM) in comparison to titanium (cp‐Ti) and zirconia (ZrO2). Four groups were tested, including horizontally FDM‐printed PEEK (PH), vertically printed FDM‐PEEK (printed vertically [PV]), cp‐Ti ...
Rafaela Branco, Raphael de Souza, Nesma El‐Amier, Neusa Silva, Elizabeth Zimmermann, António Mata, Joana Marques   +6 more
wiley   +1 more source