Results 141 to 150 of about 44,024 (283)

An extended micromechanical-based plastic damage model for understanding water effects on quasi-brittle rocks

International Journal of Mining Science and Technology
Water effects on the mechanical properties of rocks have been extensively investigated through experiments and numerical models. However, few studies have established a comprehensive link between the microscopic mechanisms of water-related micro-crack ...
Qiaojuan Yu, Shigui Du, Qizhi Zhu, Zhanyou Luo, Sili Liu, Lunyang Zhao   +5 more
doaj   +1 more source

Influence of Temperature on the Reliability of Graphene‐Based Ozone Sensors

Small, EarlyView.
The reliability and stability of inkjet‐printed graphene flake sensors are evaluated. Stress assessments take place in ozone‐rich environments and at elevated temperatures, with the observation of a change in resistance. Surface‐sensitive techniques serve to investigate the failure and degradation mechanisms of printed graphene.
Archa Jain, Kathrin Ganzhorn, Aleksandr Baklanov, Tim Schaffus, Werner Breuer, Jasper Ruhkopf, Janio Venturini, Sebastian Troll, Annalisa Cappellani, Max C. Lemme   +9 more
wiley   +1 more source

A micromechanical model for kink-band formation: Part I - Experimental study and numerical modelling [PDF]

, 2009
Fleck, Fleck, Kyriakides, Morais, Moran, P. Robinson, Pimenta, Pinho, R. Gutkin, S. Pimenta, S.T. Pinho, Schultheisz, Soutis, Vogler, Vogler   +14 more
core   +1 more source

Laser‐Direct Printed 2D Material‐Based Heterostructure for the Fabrication of Electronic Devices

Small, EarlyView.
The Digital Laser‐Induced Forward Transfer (LIFT) approach is employed to pattern and stack 2D materials with micrometer‐scale precision. PdSe2 and MoSe2 are assembled into vertical p–n junctions, with graphene serving as a transparent electrode. The resulting laser‐transferred heterostructures exhibit high material quality and stable rectifying ...
Ilias Cheliotis, Filimon Zacharatos, Avraham Twitto, Michal Poplinger, Adi Levi, Amaia Pesquera, Amaia Zurutuza, Iakovos Kritikos, Stefania Skorda, Alexandros El Sachat, Yuri Mikhlin, Doron Naveh, Ioanna Zergioti   +12 more
wiley   +1 more source

Filling a Gap in Materials Mechanics: Nanoindentation at High Constant Strain Rates up to 105 s−1

Small, EarlyView.
A piezoelectric nanoindentation platform enables constant strain‐rate testing up to 105 s−1, extending experimental capabilities to extreme deformation regimes. Distinct hardness upturns are revealed across crystalline and amorphous materials, verified as intrinsic responses through quasi‐static reloading.
Lalith Kumar Bhaskar, Dipali Sonawane, Hendrik Holz, Jeongin Paeng, Peter Schweizer, Jing Rao, Bárbara Bellón, Damian Frey, Aloshious Lambai, Laszlo Pethö, Johann Michler, Jakob Schwiedrzik, Gaurav Mohanty, Gerhard Dehm, Rajaprakash Ramachandramoorthy   +14 more
wiley   +1 more source

Constitutive modelling of single crystal and directionally solidified superalloys [PDF]

Successful attempts were made to model the deformation behavior of nickel base superalloys to be used in gas turbine engines based on both a macroscopic constitutive model and a micromechanical formulation based on crystallographic slip theory.
Jordan, Eric H., Walker, Kevin P.
core   +1 more source

About the Ageing‐Induced Modifications of Physical‐Chemical and Electrical Properties of Polyimide (PMDA‐ODA) Under Gamma Radiation and High Temperatures

High Voltage, EarlyView.
ABSTRACT This study investigates the effects of radiation‐induced ageing on the physical, chemical, mechanical and electrical properties of Poly[4,4′‐oxydiphenylene‐ pyromellitimide] (PMDA‐ODA) polyimide, a high‐performance insulation material widely used in aerospace applications.
Simone Vincenzo Suraci, Jizhu Jin, Davide Mazza, Davide Fabiani   +3 more
wiley   +1 more source

Mechanical Properties and Quantitative Analytical Modelling of Micro/Nanocellulose Co‐Modified Insulating Papers With Different Aspect Ratios

High Voltage, EarlyView.
ABSTRACT The incorporation of nanocellulose‐doped insulating paper into the material composition of a given structure has been demonstrated to enhance the material’s mechanical properties and retard the development of cracks. However, the effects of different length‐to‐diameter ratios of nanocellulose are different.
Siyu Wang, Daning Zhang, Wenrui Tian, Xinnan Zhai, Dingqian Yang, Guanjun Zhang   +5 more
wiley   +1 more source

Integrated control of a nanoindenter and X‐ray nanodiffraction for automated in situ nanomechanical studies

Journal of Synchrotron Radiation, EarlyView.
This work presents a software‐level integration of nanoindenter control directly into a beamline control system, enabling fully synchronized and automated in situ experiments through unified, real‐time coordination of mechanical loading and X‐ray nanodiffraction measurements.X‐ray diffraction (XRD) combined with in situ mechanical testing is a powerful,
Anton Davydok, Otto Carlos Lippmann, Kritika Singh, Satishkumar Kulkarni, Christina Krywka   +4 more
wiley   +1 more source

Residual Cement Excess of Composite Versus Glass Ionomer Cement in Implant‐Supported Single Crowns After Different Intraoral Exposure Times—A Randomized Controlled Clinical Trial

Clinical Oral Implants Research, EarlyView.
ABSTRACT Objective To evaluate the frequency and quantity of residual cement after cementation of monolithic zirconia crowns with glass ionomer or resin composite cement on customized ceramic abutments, following different intraoral retention times. The influence of margin location, quadrant and implant region was also assessed.
Maria Weinreuter, Kevin Richter, Thomas Stober, Peter Rammelsberg, Stefanie Kappel   +4 more
wiley   +1 more source