Results 71 to 80 of about 353,632 (269)

Friction and Wear Properties of Rice Husk Ceramics under Dry and Water Lubricated Conditions

Tribology Online, 2009
The authors have developed the new hard porous carbon material “Rice Husk ceramics” (RH ceramics) by carbonizing the mixture of rice husk and phenol resin at 900 °C in inert gas environment.
Tuvshin Dugarjav, Takeshi Yamaguchi, Kei Shibata, Kazuo Hokkirigawa   +3 more
doaj   +1 more source

Ionic Precursors Transformed Into Vinyl Acetate Synthesis Catalyst via Reaction‐Driven Restructuring

Advanced Functional Materials, EarlyView.
This work demonstrates that a simple physical mixture of Pd and Au ionic precursors, KOAc promoter, and SiO2 support can transform into a highly active vinyl acetate synthesis catalyst through reaction‐driven restructuring. The results highlight reaction‐induced restructuring as an innovative and sustainable catalyst design strategy.
Byeong Jun Cha, Welman C. Elias, Hunter P. Jacobs, Kimberly N. Heck, Saghar Rezaie, Sadegh Yazdi, Kiheon Hong, Justin J. Dodson, Laiyuan Chen, Sean G. Mueller, Steven R. Alexander, Michael S. Wong   +11 more
wiley   +1 more source

"Effect of silane coupling agent blend system on structure and properties of silica/solution-polymerized butadiene-styrene rubber/ natural rubber composite"

Hecheng xiangjiao gongye
Silica/solution-polymerized butadiene-styrene rubber (SSBR)/natural rubber (NR) compo-sites were prepared by mechanical mixing method with silane coupling agent, bis[3-(triethoxysilyl)propyl]tetrasulfide (Si 69) and 3-mercaptopropyl-ethyoxyl-di(tridecyl ...
ZHENG Tao1, LONG Fei-fei1, SHAO Hong-qi2
doaj   +1 more source

Ambient‐Stable Transparent P‐Type CuI Transistors Via Room‐Temperature Pulsed Laser Deposition

Advanced Functional Materials, EarlyView.
An in situ PLD fabricated AlOx${\rm AlO}_x$/CuI/AlOx${\rm AlO}_x$ sandwich structure enables stable CuI TFTs with a field‐effect mobility of 2.3 ±$\pm$ 0.7 cm2${\rm cm}^{2}$ V−1${\rm V}^{-1}$ s−1${\rm s}^{-1}$ and excellent ambient stability. Complementary inverters based on CuI:Rb and ZnO:Al exhibit rail‐to‐rail voltage transfer characteristics and an
Yang Chen, Susanne Selle, Michael S. Bar, Michael Lorenz, Holger von Wenckstern, Marius Grundmann   +5 more
wiley   +1 more source

Two‐Photon Grayscale Lithography (2GL) of High Mechanical and Optical Quality 3D Silica Glass Microstructures

Advanced Functional Materials, EarlyView.
Two‐photon grayscale lithography (2GL) enables high‐speed and precise 3D printing of thermolyzed silica glass microstructures with optical‐grade surface quality, high quality factors, and mechanical strength utilizing a custom‐made pre‐glass resist based on polyhedral oligomeric silsesquioxane (POSS) modified with a high‐sensitivity Norrish type II ...
Jonathan L. G. Schneider, Jiajie Liang, Paul Somers, Martin Wegener, Jens Bauer   +4 more
wiley   +1 more source

Investigating the Supramolecular Assemblies under the Confinement in Hybrid Mesoporous Silica Films

Small Science
This study investigates hydrogen‐bond‐mediated supramolecular assemblies within the confined environment of hybrid mesoporous silica films. Infrared spectroscopy is used to examine hydrogen bonding (HB) between ureidophenyl moieties introduced into the ...
Jakub Kusz, Cédric Boissiere, Michel Wong Chi Man, Tangui Le Bahers, Clément Sanchez, Stephane Parola   +5 more
doaj   +1 more source

Atomistic Insights into the Copper Oxidation Reactions for the CeO2-Cu Interface Using First-Principles Molecular Dynamics Simulations

Tribology Online
The reaction pathways of Cu oxidation by the chemical mechanical polishing (CMP) slurry containing ceria (CeO₂) abrasive grains were theoretically investigated.
Hitomi Takahashi, Shogo Arata, Satoyuki Nomura   +2 more
doaj   +1 more source

Silicone Phase Behavior Resolves the Softness–Surface Functionality Trade‐Off in Emerging Stretchable Electronics

Advanced Functional Materials, EarlyView.
Ultrasoft silicone elastomers often sacrifice surface functionality for mechanical compliance. In Mold Star, low‐molecular‐weight species form a dispersed phase that weakens the network and passivates the surface. Solvent extraction removes this phase, unexpectedly improving both extensibility and metallization performance, enabling conductive ...
Gloria M. D'Amaral, Rahaf Nafez Hussein, Tiago Carneiro Gomes, Jordan E. Nicholson, Lauren J. Renaud, Emily J. Addison, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +7 more
wiley   +1 more source

Effects of SiO₂ with Different Particle Sizes on the Self-Repairing Properties of Microbial Mineralized Cement Mortar

Applied Sciences
Microbial-induced calcium carbonate precipitation (MICP) is an environmentally sustainable technology for the self-healing of concrete cracks. In this experiment, expanded perlite was used as a bacterial carrier.
Xusen Li, Wenxu Yang, Songsong Wan, Shuangxin Li, Zhenwu Shi, Hexiang Wu   +5 more
doaj   +1 more source

Biomineral‐Inspired Organic/Inorganic Colloidal Liquid‐Crystalline Hybrids for Photoresponsive Adhesion

Advanced Functional Materials, EarlyView.
A new class of photoresponsive liquid‐crystalline (LC) adhesives based on biomineral‐inspired organic/inorganic colloidal hybrids is reported. These colloidal LC materials are formed by hybridization of a hydroxyapatite nanorod with azobenzene‐based forklike molecules.
Junya Uchida, Ryuta Kiguchi, Riki Kato, Yuta Nishina, Takashi Kato   +4 more
wiley   +1 more source