Results 11 to 20 of about 246 (166)

Perspectives of 2D MXene Tribology. [PDF]

Adv Mater, 2023
The past two years have witnessed increased experimental and theoretical efforts toward studying MXenes’ mechanical and tribological properties when used as lubricant additives, reinforcement phases in composites, or solid lubricant coatings. The most promising results in MXene tribology are summarized, future important problems to be pursued further ...
Rosenkranz A, Righi MC, Sumant AV, Anasori B, Mochalin VN.   +4 more
europepmc   +2 more sources

Strain-Induced Redistribution of Point Defects in ZnO Nanoparticles. [PDF]

Small Sci
Powder compaction generates local strain effects in ZnO nanoparticles. This alters the abundance of intrinsic point defects and impacts the semiconductor's electronic structure. Such changes were analyzed by a combination of spectroscopy and density functional theory calculations and emphasize the importance of strain effects in the design and ...
Aicher K, Berger T, Litovoilis A, Aschauer U, Diwald O.   +4 more
europepmc   +2 more sources

Friction and Wear Behavior of Laser-Induced Graphene Structures on Polyimide Films. [PDF]

Small Sci
This study presents an investigation into the friction and wear behavior of laser‐induced graphene (LIG). Introducing line patterns of different sizes with this laser scribing approach results in a lowering of the coefficient of friction. The gradual wear of the protruding LIG patterns and the formation of wear debris are explored.
Gleirscher M, Zeiler S, Parlanti P, Bandl C, Maier-Kiener V, Greco F, Schlögl S.   +6 more
europepmc   +2 more sources

Self-Lubricating Tribo-Catalytic Activity of 2D High Entropy Alloy Nanoflakes. [PDF]

Small
The 2D high entropy alloy (HEA) of (MoWNbTaV)0.2S2 is synthesized and investigated through ball‐on‐disk friction experiments. The unprecedentedly low average coefficients of friction (0.076) and wear rates (10−9 mm3 (N∙m)−1) under high contact pressures (0.936 GPa) within ambient conditions are demonstrated.
Wang S, Sunkara SV, Manna S, Ahmadiparidari A, Kumar K, Yang T, Namvar S, Seraji P, Huang Z, Cabana J, Sankaranarayanan SKRS, Liu Y, Sumant AV, Salehi-Khojin A.   +13 more
europepmc   +2 more sources

Se Nanopowder Conversion into Lubricious 2D Selenide Layers by Tribochemical Reactions

Advanced Materials, Volume 35, Issue 42, October 19, 2023., 2023
A simple sprinkling of Se nanopowders onto sliding Mo and W thin films leads to the tribochemical in operando formation of lubricious 2D selenides. Due to the thermal and vacuum stability of the Se nanopowders they can be used to replenish sliding components with solid lubricants, avoiding the long‐lasting problem of transition metal ...
Philipp G. Grützmacher, Michele Cutini, Edoardo Marquis, Manel Rodríguez Ripoll, Helmut Riedl, Philip Kutrowatz, Stefan Bug, Chia‐Jui Hsu, Johannes Bernardi, Carsten Gachot, Ali Erdemir, Maria Clelia Righi   +11 more
wiley   +1 more source

Mechanisms behind the environmental sensitivity of carbon fiber reinforced polytetrafluoroethylene (PTFE)

Friction, 2023
Carbon fiber reinforced polytetrafluoroethylene (CF/PTFE) composites are known for their exceptional tribological performance when sliding against steel or cast iron in inert gas environments.
P. Johansson, P. Marklund, M. Björling, Y. Shi   +3 more
doaj   +1 more source

A New Method of AFM‐Based Nanolithography Using Frequency Enhanced Electrochemical Pressure Solution Etching

Advanced Materials Technologies, Volume 8, Issue 10, May 25, 2023., 2023
This work details a new method of atomic force microscopy (AFM)‐based lithography which utilizes a new chemical phenomenon of “frequency enhanced electrochemical pressure solution” (a.k.a. “FEEPS”) that greatly enhances the rate of silica dissolution under an oscillating AFM tip undergoing tapping in pure water.
Kilian Shani Fraysse, Alastair J. N. MacLeod, Will P. Gates, Daniel P. Langley, George W. Greene   +4 more
wiley   +1 more source

Formation of Nano Interface by Sliding between Hard Coatings and Metals in MoDTC Contained Oil

Tribology Online, 2022
The viscosity of motor oil gets lower in order to decrease resistance at region of the fluid lubrication. On the other hands, this causes increasing of friction at the boundary lubrication region.
Ryo Koike, Atsushi Suzuki, Kazue Kurihara, Koshi Adachi   +3 more
doaj   +1 more source

The Mechanochemical Synthesis and Activation of Carbon‐Rich π‐Conjugated Materials

Advanced Science, Volume 9, Issue 19, July 6, 2022., 2022
Mechanochemistry allows the manipulation of chemical bonds by force as unique stimulus to impart functionality and bottom‐up bond formation. This allows the synthesis and activation of π‐conjugated carbon‐rich materials that would otherwise not be accessible.
Mingjun Xuan, Christian Schumacher, Carsten Bolm, Robert Göstl, Andreas Herrmann   +4 more
wiley   +1 more source

Release of Molecular Cargo from Polymer Systems by Mechanochemistry

Chemistry – A European Journal, Volume 28, Issue 17, March 22, 2022., 2022
Mechanochemical design: The incorporation of force‐responsive groups, known as mechanophores, into macromolecular systems has provided access to responsive behaviours and enabled sophisticated functions of the resulting structures and advanced materials.
Robin Küng, Robert Göstl, Bernd M. Schmidt   +2 more
wiley   +1 more source