Results 151 to 160 of about 58,770 (304)

Dendritic Nano‐Based Slippery Coating by Synergistic Mechanical and Electrostatic Interactions with Persistent and Exceptional Combats Thrombosis

Advanced Science, EarlyView.
A novel dendritic nano‐based slippery coating (DNSC), fabricated by encapsulating carboxyl silicone oil within amino dendritic silica nanoparticles and co‐embedding them in an epoxy resin matrix. The dendritic architecture enhances nanoparticle dispersion in the matrix and establishes mechanical interlock.
Shu Zhang, Yao Shen, Juan Liu, Qing Zeng, Yunze Ma, Shuping Chen, Taiyu Nan, Xiaoying Qiu, Jiayi Yu, Tao Fan, Guozhi Huang, Jihua Zou, Chengduan Yang   +12 more
wiley   +1 more source

Behavior of CuO as solid lubricant inside ZTA matrices

AIP Advances
This investigation delves into the behavior of copper oxide (CuO) as a solid lubricant inside zirconia toughened alumina (ZTA) ceramic composites. The investigation starts with the preparation of ZTA through co-precipitation followed by powder metallurgy
Bipin Kumar Singh, Amit Kumar, Robert Cep, Ajay Kumar, Ashwini Kumar, Namrata Dogra, K. Logesh   +6 more
doaj   +1 more source

Ultrasoft Yet Tough Multifunctional Organohydrogels Enabled by Molecular Chain Lubrication Strategy for Self‐Powered Wearable Electronics

Advanced Science, EarlyView.
An ultrasoft yet tough organohydrogel (AQGL) with 5800% stretchability and 14.3 kPa modulus is developed via a novel molecular chain lubrication strategy. It features optical transparency, drying/freezing (−40°C) tolerance, antibacterial activity, conductivity, self‐healing, and adhesiveness.
Si Wang, Lin Hu, Mingbo Pu, Mingfeng Xu, Tao Zhou, Hanbing Rao, Xiong Li, Xiaoliang Ma, Gehong Su, Xiangang Luo   +9 more
wiley   +1 more source

Measurements of elastohydrodynamic film thickness, wear and tempering behavior of high pressure oxygen turbopump bearings [PDF]

The reusable design of the Space Shuttle requires a target life of 7.5 hours for the turbopumps of the Space Shuttle main engine (SSME). This large increase from the few hundred seconds required in single-use rockets has caused various problems with the ...
Dufrane, K. F., Hauser, D., Kannel, J. W., Merriman, T. L., Stockwell, R. D., Vanecho, J. A.   +5 more
core   +1 more source

Multi‐Force‐Driven Self‐Recoverable SWIR Mechanoluminescence for Underwater Communication

Advanced Science, EarlyView.
This study represents the first demonstration of self‐recoverable mechanoluminescent (ML) within a single material across diverse mechanical modes, enabled by the synergistic coupling of piezoelectric and triboelectric effects. Through a combinatorial doping approach, the MgNb2O6 crystal exhibits breakthrough short‐wavelength infrared ML performance ...
Jie Sun, Yingqiang Li, Lei Wang, Li Li, Bo Zhao, Yu Wang, Yu Zhang, Xian Zheng, Jiale Zhang, Xinhong Wen, Guodong Zhang, Zhijun Wang, Panlai Li, Hao Suo   +13 more
wiley   +1 more source

The Flexible Lubrication Performance of Graphene Used in Diamond Interface as a Solid Lubricant: First-Principles Calculations. [PDF]

Nanomaterials (Basel), 2019
Wang J, Li L, Yang W, Li M, Guo P, Zhao B, Yang L, Fang L, Sun B, Jia Y.   +9 more
europepmc   +1 more source

Polyimides: Tribological properties and their use as lubricants [PDF]

Friction, wear, and wear mechanisms of several different polyimide films, solid bodies, composites, and bonded solid lubricant films are compared and discussed.
Fusaro, R. L.
core   +1 more source

Transition Metal Compounds for Aqueous Ammonium‐Ion Batteries: Storage Mechanisms and Electrode Design

Advanced Science, EarlyView.
Aqueous ammonium‐ion batteries leverage hydrogen‐bond‐mediated NH4+ storage in tunable transition metal compounds. Despite progress in Mn‐, V‐, Mo‐, and W‐based compounds, 2D LDHs, and MXenes, challenges like structural instability and slow kinetics persist. Future advances require robust host design, mechanistic understanding via operando studies, and
Can Li, Ziyuan Lan, Hanghang Liu, Yunxuan Jiang, Lingfeng Zhu, Xiaoning Li, Bo‐Tian Liu   +6 more
wiley   +1 more source

Experimental Isolation of Single Impact, Cumulative Energy, Aging, and Liquid‐Assisted Grinding Effects in Mechanochemical Reactions

Angewandte Chemie, EarlyView.
An experimental framework is introduced to isolate single‐impact and cumulative energy within a mechanochemical system. The guided, stepwise approach highlights the fundamental roles of impact events, post‐impact reactivity, and liquid‐assisted grinding additives in all‐solid mechanochemical reactions.
Johanna Templ, Lars Borchardt
wiley   +2 more sources

Ultralow Interlayer Friction of Layered Electride Ca₂N: A Potential Two-Dimensional Solid Lubricant Material. [PDF]

Materials (Basel), 2018
Wang J, Li L, Shen Z, Guo P, Li M, Zhao B, Fang L, Yang L.   +7 more
europepmc   +1 more source